List of MPECs

Below is a list of Minor Planet Electronic Circulars (MPECS) co-authored by the Winer Director, Mark Trueblood, his colleague Robert Crawford (Director of the Rincon Ranch Observatory), or both. Dr. Larry Lebofsky assisted Robert and me on the 2.1-m, Bok 90-inch, and VATT 1.8-m runs. The Status column indicates the type of publication issued by the Minor Planet Center (MPC). The NEOCP MPECs represent a single object, usually one that has been confirmed soon after discovery, while MPECs for a single object issued for a recovery after one or more orbits since the previous observation are shown in this table with a status of MPEC. Single object MPECs are shown when one queries the Astrophysics Data System and checks the IAUC box. Such single object MPECs show as co-authors the individuals responsible for the observation of the object. The Daily Orbit Update (DOU) MPECs contain the observations of dozens if not a hundred or more observers, so co-authorship is not given. Therefore, DOUs are not searchable by author on the ADS. For the most part, observations by this team are designated in a DOU with observatory code 695 (Kitt Peak) at the far right side, and by a right bracket (]) at the left side of the observation data line.

The observations in the DOUs are usually of Virtual Impactors (VIs) and Potentially Hazardous Asteroids (PHAs), objects with an enhanced probability of striking Earth, as opposed to the vast majority of NEOs. The observations in a DOU reduce the uncertainties in the orbits of VIs and PHAs, and help assessments of their impact probabilities. For more information on the formal definitions of VI and PHA click Andrea Milani's paper for VIs, or Wikipedia Near Earth Objects for PHAs.

In the MPECs, the Winer Observatory Sonoita Field Station in Sonoita, AZ has IAU Observatory Code 648. These MPECs were co-authored by Trueblood and Crawford. Trueblood (as PI) was also awarded time on the Kitt Peak 2.1-m and 0.9-m telescopes to perform astrometric follow-up of NEOs using observatory code 695, while Larry Lebofsky was the PI on the Bok 90-inch and VATT runs. Others assisted from time to time, including Tom Kaye, Dr. Dave Bell, Dr. Ken Mighell, Ken's REU students including Morgan Rehnberg and Nicholas Kutsop, and Justin Bell as needed. In semesters 2013A, 2013B, November 2014, and at other times, Dave Bell replaced Robert Crawford as the Measurer (person who reduces the data, blinks the images, finds the moving object, measures its position, and reports our measurements to the MPC). With the closure of the 2.1-m telescope on Kitt Peak at the end of Semester 2014A, Dr. Larry Lebofsky became the PI for proposals to the University of Arizona's Bok 2.3-m (90-inch) telescope also on Kitt Peak, and the VATT 1.8-m telescope on Mt. Graham. In the PDF MPECs, data related to observations by those listed above is highlighted in yellow.

The telescopes designated below include the following:

TelescopeDescription
RR20Rincon Ranch Observatory 0.5-m (20-inch) Newtonian
2.1-mKitt Peak National Observatory 2.1-m (84-inch) Cassegrain
0.9-mKitt Peak National Observatory 0.9-m (38-inch) Cassegrain
2.3-mUniversity of Arizona 2.3-m (90-inch) Prime Focus Camera
1.8-mVATT 1.8-m (72-inch) Gregorian

Acknowledgment: This material is based upon work supported by the National Aeronautics and Space Administration under grants issued through the Planetary Astronomy Program (Near Earth Object Observing program) of the Science Mission Directorate. Present and past grants include:

Any opinions, findings, and conclusions or recommendations expressed on this Web site are those of the staff of Winer Observatory and do not necessarily reflect the views of the National Aeronautics and Space Administration.

Search for any MPEC in the field below:

MPEC number:

Under the Results column, we use the following codes:

Code Comment
C object on NEO Confirmation Page confirmed and designated by the MPC
D object downgraded from a VI to a PHA
E object's orbit was extended during the then current apparition
R object recovered after one or more apparitions (usually orbits) since the previous observation apparition

2008

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Nov-25 2008-W66
PDF Version
2008 WM61 C 648 RR20 NEOCP 1 1 1
Dec-1 2008-X12
PDF Version
2008 WG96 C 648 RR20 NEOCP 1 2 2
Dec-1 2008-X15
PDF Version
2008 WK96 C 648 RR20 NEOCP 1 3 3
Dec-22 2008-Y29
PDF Version
2008 YJ2 C 648 RR20 NEOCP 1 4 4
Dec-22 2008-Y30
PDF Version
2008 YK2 C 648 RR20 NEOCP 1 5 5
Total 5 5

2009

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Jan-21 2009-B39
PDF Version
2009 BU5 C 695 2.1-m NEOCP 1 6 6
Aug-19 2009-Q25
PDF Version
2009 QN5 C 695 2.1-m NEOCP 1 7 7
Aug-20 2009-Q32
PDF Version
2009 QY6 C 695 2.1-m NEOCP 1 8 8
Aug-20 2009-Q33
PDF Version
2009 QZ6 C 695 2.1-m NEOCP 1 9 9
Oct-6 2009-T15
PDF Version
2009 SH2 E 695 0.9-m DOU 1 10 10
Total 5 5

2010

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Jan-8 2010-A34
PDF Version
2010 AK2 C 695 2.1-m NEOCP 1 11 11
Jan-8 2010-A35
PDF Version
2010 AL2 C 695 2.1-m NEOCP 1 12 12
Jan-8 2010-A36
PDF Version
2010 AM2 C 695 2.1-m NEOCP 1 13 13
Jan-8 2010-A37
PDF Version
2010 AN2 C 695 2.1-m NEOCP 1 14 14
Jan-8 2010-A38
PDF Version
2010 AO2 C 695 2.1-m NEOCP 1 15 15
Jan-9 2010-A39
PDF Version
2009 XO E 695 2.1-m DOU 1 16 16
Jan-9 2010-A40
PDF Version
2010 AB3 C 695 2.1-m NEOCP 1 17 17
Jan-9 2010-A41
PDF Version
2010 AC3 C 695 2.1-m NEOCP 1 18 18
Jan-9 2010-A42
PDF Version
2010 AD3 C 695 2.1-m NEOCP 1 19 19
Jan-9 2010-A43
PDF Version
2010 AE3 C 695 2.1-m NEOCP 1 20 20
Mar-12 2010-E52
PDF Version
2010 DF1 E 695 2.1-m DOU 1 21 21
Apr-9 2010-G72
PDF Version
2005 YU55 E 695 2.1-m DOU 2 22 22
2010 BC3 E 23
May-18 2010-K13
PDF Version
2010 FC81 E 695 2.1-m DOU 3 23 24
2010 JV34 E 25
2010 JN71 E 26
May-19 2010-K14
PDF Version
2010 EV45 E 695 2.1-m DOU 3 24 27
2010 GO33 E 28
2010 JL33 E 29
May-21 2010-K33
PDF Version
2010 KB8 C 695 0.9-m NEOCP 1 25 30
Jun-6 2010-L24
PDF Version
2010 LF14 C 695 0.9-m NEOCP 1 26 31
Jun-6 2010-L25
PDF Version
2010 LG14 C 695 0.9-m NEOCP 1 27 32
Jun-7 2010-L27
PDF Version
2010 LJ14 C 695 0.9-m NEOCP 1 28 33
Jul-6 2010-N19
PDF Version
2010 NL C 695 0.9-m NEOCP 1 29 34
Jul-6 2010-N20
PDF Version
2010 NM C 695 0.9-m NEOCP 1 30 35
Jul-8 2010-N40
PDF Version
2010 NG1 C 695 2.1-m NEOCP 1 31 36
Jul-8 2010-N42
PDF Version
2010 NJ1 C 695 0.9-m NEOCP 1 32 37
Jul-8 2010-N43
PDF Version
2010 NK1 C 695 0.9-m NEOCP 1 33 38
Sep-14 2010-R109
PDF Version
2010 OK126 E 695 2.1-m DOU 3 34 39
2010 PL9 E 40
2010 PD57 E 41
Sep-14 2010-R110
PDF Version
2010 RA91 C 695 2.1-m NEOCP 1 35 42
Sep-15 2010-R113
PDF Version
2010 LH14 E 695 2.1-m DOU 5 36 43
2010 OB E 44
2010 PS65 E 45
2010 PS66 E 46
2010 RM80 E 47
Sep-17 2010-S10
PDF Version
2010 HQ80 E 695 2.1-m DOU 1 37 48
Oct-8 2010-T56
PDF Version
2010 HQ80 E 695 2.1-m DOU 1 38 49
Oct-9 2010-T59
PDF Version
2010 TS19 C 695 2.1-m NEOCP 1 39 50
Oct-9 2010-T60
PDF Version
2002 VE68 E 695 2.1-m DOU 8 40 51
2003 UV11 E 52
2007 TU24 E 53
2009 MS E 54
2010 MF1 E 55
2010 RC130 E 56
2010 RA147 E 57
2010 TM E 58
Dec-11 2010-X90
PDF Version
2010 XU45 C 695 2.1-m NEOCP 1 41 59
Dec-11 2010-X91
PDF Version
2005 GC120 E 695 2.1-m DOU 12 42 60
2007 XY9 E 61
2009 CN5 E 62
2010 JV34 E 63
2010 KR10 E 64
2010 UM E 65
2010 VQ21 E 66
2010 VC40 E 67
2010 WG3 E 68
2010 WC9 E 69
2010 XG E 70
2010 XU E 71
Total 32 61

2011

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Jan-28 2011-B46
PDF Version
2007 TL23 E 695 2.1-m DOU 8 43 72
2010 WX58 E 73
2011 AX22 E 74
2011 BV11 E 75
2011 BW11 E 76
2011 BA12 E 77
2011 BX10 E 78
2011 BT15 E 79
Jan-28 2011-B49
PDF Version
2011 BY18 C 695 2.1-m NEOCP 1 44 80
Jan-28 2011-B54
PDF Version
2011 BF24 C 695 2.1-m NEOCP 1 45 81
Jan-29 2011-B56
PDF Version
2009 TK12 E 695 2.1-m DOU 10 46 82
2010 JG E 83
2010 RF181 E 84
2010 UT7 E 85
2010 WZ8 E 86
2010 YB E 87
2011 AK5 E 88
2011 AM12 E 89
2011 AT26 E 90
2003 YG118 E 91
Mar-3 2011-E17
PDF Version
2009 FY4 E 695 2.1-m DOU 5 47 92
2011 BT15 E 93
2011 CG2 E 94
2011 DU E 95
2011 DS9 E 96
Mar-4 2011-E21
PDF Version
2004 XN50 E 695 2.1-m DOU 3 48 97
2011 BO59 E 98
2011 CY46 E 99
Mar-6 2011-E34
PDF Version
2011 DY4 E 695 2.1-m DOU 1 49 100
May-4 2011-J16
PDF Version
2011 HB53 E 695 2.1-m DOU 2 50 101
2011 JA E 102
May-4 2011-J22
PDF Version
2011 HO5 E 695 2.1-m DOU 1 51 103
July-1 2011-N01
PDF Version
2011 EZ78 E 695 2.1-m DOU 4 52 104
2011 JK E 105
2011 LC19 E 106
2011 LJ19 E 107
July-1 2011-N02
PDF Version
2011 MM4 C 695 2.1-m NEOCP 1 53 108
July-2 2011-N07
PDF Version
2003 QC10 E 695 2.1-m DOU 5 54 109
2011 AG5 E 110
2011 CG2 E 111
2011 DS9 E 112
2011 MD E 113
Oct-28 2011-U91
PDF Version
2011 LJ19 E 695 2.1-m DOU 5 55 114
2011 TN19 E 115
2011 UT20 E 116
2011 UL21 E 117
2011 UV63 E 118
Nov-4 2011-V17
PDF Version
2008 QT3 E 695 2.1-m DOU 1 56 119
Nov-23 2011-W37
PDF Version
2011 WA E 695 2.1-m DOU 1 57 120
Nov-24 2011-W43
PDF Version
2001 YE4 E 695 2.1-m DOU 4 58 121
2011 LC19 E 122
2011 TN9 E 123
2011 WQ2 E 124
Total 16 53

2012

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Jan-18 2012-B06
PDF Version
2012 AD3 E 695 2.1-m DOU 2 59 125
2011 YG6 E 126
Jan-19 2012-B07
PDF Version
2011 LC19 E 695 2.1-m DOU 11 60 127
2011 OR15 E 128
2011 PS E 129
2011 PO1 E 130
2011 VU5 E 131
2011 WN15 E 132
2011 WU95 E 133
2011 XM1 E 134
2011 YH28 E 135
2011 YJ28 E 136
2012 AP10 E 137
Feb-19 2012-D22
PDF Version
2012 BN11 E 695 2.1-m DOU 3 61 138
2012 BT23 E 139
2012 CA21 E 140
Feb-20 2012-D27
PDF Version
2012 BN11 E 695 2.1-m DOU 1 62 141
Feb-21 2012-D37
PDF Version
2011 VU5 E 695 2.1-m DOU 2 63 142

PDF Version
2012 BB124 E 143
Mar-2 2012-E16
PDF Version
2008 OX1 R, VI 695 2.1-m DOU 2 64 144

PDF Version
2011 AX22 R, VI, D 145
Apr-27 2012-H75
PDF Version
2012 HM E 695 2.1-m DOU 2 65 146
2012 HG8 E 147
Apr-28 2012-H76
PDF Version
2012 CA21 E 695 2.1-m DOU 6 66 148
2012 FR1 E 149
2012 FO62 E 150
2012 GV17 E 151
2012 HJ1 E 152
2012 HM8 E 153
Jun-13 2012-L35
PDF Version
2012 LF4 C 695 2.1-m NEOCP 1 67 154
Jun-14 2012-L37
PDF Version
2012 FQ1 E 695 2.1-m DOU 2 68 155
2012 KA4 E 156
Jun-15 2012-L41
PDF Version
2012 CA21 E 695 2.1-m DOU 7 69 157
2012 CA55 E 158
2012 HD20 E 159
2012 HG31 E 160
2012 JX11 E 161
2012 KC6 E 162
2012 LR1 E 163
Jun-16 2012-M02
PDF Version
2011 YU74 E 695 2.1-m DOU 1 70 164
Oct-12 2012-T69
PDF Version
2011 GQ61 E 695 2.1-m DOU 10 71 165
2011 JK E 166
2012 LK11 E 167
2012 OD1 E 168
2012 QQ10 E 169
2012 QE50 E 170
2012 RR16 E 171
2012 SW20 E 172
2012 TC4 E 173
2012 TY52 E 174
Dec-18 2012-Y07
PDF Version
2002 AY1 E 695 2.1-m DOU 5 72 175
2012 WK4 E 176
2012 XM55 E 177
2012 XS93 E 178
012 XD112 E 179
Total 14 55

2013

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Jan-9 2013-A46
PDF Version
2012 PP28 E 695 2.1-m DOU 8 73 180
2012 VA5 E 181
2012 XY6 E 182
2012 XO111 E 183
2012 XJ134 E 184
2012 YO1 E 185
2012 YO3 E 186
2012 YY6 E 187
Jan-10 2013-A51
PDF Version
2007 AG12 E 695 2.1-m DOU 5 74 188
2012 VL6 E 189
2012 XQ55 E 190
2012 XD112 E 191
2012 YR1 E 192
Apr-12 2013-G54
PDF Version
2013 AE69 E 695 2.1-m DOU 15 75 193
2013 EA E 194
2013 EQ4 E 195
2013 EL28 E 196
2013 EC68 E 197
2013 EV108 E 198
2013 EO126 E 199
2013 FZ7 E 200
2013 FA8 E 201
2013 FL9 E 202
2013 FT13 E 203
2013 FW13 E 204
2013 FX13 E 205
2013 FY13 E 206
2002 OD20 E 207
Apr-13 2013-G66
PDF Version
2013 EK28 E 695 2.1-m DOU 1 76 208
Apr-18 2013-H16
PDF Version
2013 GM3 E 695 2.1-m DOU 1 77 209
Jun-9 2013-L42
PDF Version
2002 GT E 695 2.1-m DOU 4 78 210
2013 JF1 E 211
2013 JR28 E 212
2013 KH6 E 213
Jun-10 2013-L44
PDF Version
2013 JK2 E 695 2.1-m DOU 3 79 214
2013 JL22 E 215
2013 JM7 E 216
Jun-11 2013-L54
PDF Version
2013 EU9 E 695 2.1-m DOU 2 80 217
2013 HP11 E 218
Jun-13 2013-L62
PDF Version
2013 JM14 E 695 2.1-m DOU 1 81 219
Jun-14 2013-L66
PDF Version
2013 GQ38 E 695 2.1-m DOU 2 82 220
2013 JH14 E 221
Jun-17 2013-M09
PDF Version
2011 BT15 R, D, PHA 695 2.1-m MPEC 1 83 222
Jun-18 2013-M18
PDF Version
2013 LG16 E 695 2.1-m DOU 2 84 223
2013 LL31 E 224
Oct-11 2013-T88
PDF Version
2013 BO76 E 695 2.1-m DOU 2 85 225
2013 FX7 E 226
Oct-12 2013-T93
PDF Version
2001 AV43 E 695 2.1-m DOU 2 86 227
2011 UW158 E 228
Oct-13 2013-T94
PDF Version
2004 AS1 E 695 2.1-m DOU 8 87 229
2011 WU95 E 230
2013 ER89 E 231
2013 LF7 E 232
2013 NP8 E 233
2013 NP11 E 234
2013 OG E 235
2013 OO2 E 236
Oct-20 2013-U15
PDF Version
2013 NW E 695 2.1-m DOU 1 88 237
Dec-6 2013-X28
PDF Version
2006 CT E 695 2.1-m DOU 16 89 238
2013 BE19 E 239
2013 TR132 E 240
2013 TV135 E 241
2013 VC10 E 242
2013 WH E 243
2013 Wy E 244
2013 WR43 E 245
2013 WT43 E 246
2013 WX43 E 247
2013 WT44 E 248
2013 WX44 E 249
2013 WZ44 E 250
2013 WR45 E 251
2013 WT45 E 252
2013 WW45 E 253
Dec-7 2013-X38
PDF Version
2005 VA2 E 695 2.1-m DOU 11 90 254
2013 RJ74 E 255
2013 SB21 E 256
2013 SU24 E 257
2013 TL E 258
2013 US3 E 259
2013 UR5 E 260
2013 US8 E 261
2013 VM2 E 262
2013 VJ13 E 263
2013 WM E 264
Total 18 85

2014

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Feb-05 2014-C12
PDF Version
2014 AG16 E 695 2.1-m DOU 2 91 265
2014 AF51 E 266
Feb-06 2014-C14
PDF Version
2014 BR57 E 695 2.1-m DOU 1 92 267
Apr-04 2014-G13
PDF Version
2013 TL E 695 2.1-m DOU 10 93 268
2014 CY4 E 269
2014 EQ12 E 270
2014 EG45 E 271
2014 ER49 E 272
2014 FF E 273
2014 FH E 274
2014 FX6 E 275
2014 FX32 E 276
2014 FR37 E 277
Apr-05 2014-G21
PDF Version
2014 AF51 E 695 2.1-m DOU 1 94 278
Apr-06 2014-G36
PDF Version
2013 CW32 E 695 2.1-m DOU 1 95 279
May-22 2014-K25
PDF Version
2014 HP4 E 695 2.1-m DOU 4 96 280
2014 HT4 E 281
2014 HH123 E 282
2014 JT2 E 283
May-23 2014-K29
PDF Version
2014 BW2 E 695 2.1-m DOU 5 97 284
2014 FL38 E 285
2014 HX176 E 286
2014 HS184 E 287
2014 JR25 E 288
May-27 2014-K57
PDF Version
2014 JL25 E 695 2.1-m DOU 1 98 289
Oct-25 2014-U54
PDF Version
2010 GX62 E 695 2.3-m DOU 3 99 290
2010 XC11 E 291
2014 TA36 E 292
Oct-26 2014-U67
PDF Version
2012 TS78 E 695 2.3-m DOU 10 100 293
2014 TL17 E 294
2014 TA36 E 295
2014 TB36 E 296
2014 TC36 E 297
2014 TW57 E 298
2014 UR7 E 299
2014 US7 E 300
2014 UF8 E 301
2014 UF56 R 302
Nov-24 2014-W84
PDF Version
2014 SD304 E 695 2.3-m DOU 3 101 303
2014 UD115 E 304
2014 UQ56 E 305
Nov-26 2014-W103
PDF Version
2014 TA36 E 695 2.3-m DOU 6 102 306
2014 TO35 E 307
2014 TZ17 E 308
2014 UY7 E 309
2014 VL6 E 310
2012 YK E 311
Total 12 47

2015

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Feb-16 2015-D02
PDF Version
2015 CZ13 C 695 2.3-m NEOCP 1 103 312
Apr-22 2015-H79
PDF Version
2014 LJ21 E 695 2.3-m DOU 9 104 313

PDF Version
2015 FN118 E 314

PDF Version
2015 FT118 E 315

PDF Version
2015 FG120 E 316

PDF Version
2015 FL290 E 317

PDF Version
2015 FA341 E 318

PDF Version
2015 GS E 319

PDF Version
2015 GF1 E 320

PDF Version
2015 GZ13 E 321
Apr-23 2015-H102
PDF Version
2015 BK515 E 695 2.3-m DOU 4 105 322

PDF Version
2015 FG37 E 323

PDF Version
2015 HJ E 324

PDF Version
2015 HE10 E 325
Apr-24 2015-H112
PDF Version
2015 DE176 E 695 2.3-m DOU 7 106 326

PDF Version
2015 FL290 E 327

PDF Version
2015 GB14 E 328

PDF Version
2015 HK E 329

PDF Version
2015 HB9 E 330

PDF Version
2015 HU9 E 331

PDF Version
2015 HW E 332
Nov-19 2015-W25
PDF Version
2015 FP118 E 290 1.8-m DOU 3 107 333

PDF Version
2015 GZ13 E 334

PDF Version
2015 NK13 E 335
Dec-14 2015-X161
PDF Version
2015 XT E 290 1.8-m DOU 2 108 336

PDF Version
2015 XB2 E 337
Dec-18 2015-Y20
PDF Version
Comet C/2015 X8 E 695 2.3-m PHA 1 109 338
Dec-19 2015-Y40
PDF Version
2015 YB1 C 695 2.3-m NEOCP 1 110 339
Dec-19 2015-Y41
PDF Version
2015 YC1 C 695 2.3-m NEOCP 1 111 340
Dec-19 2015-Y43
PDF Version
2015 YE1 C 695 2.3-m NEOCP 1 112 341
Dec-19 2015-Y45
PDF Version
2015 YH1 C 695 2.3-m NEOCP 1 113 342
Dec-20 2015-Y46
PDF Version
2015 YJ1 C 695 2.3-m NEOCP 1 114 343
Dec-20 2015-Y49
PDF Version
2015 YM1 C 695 2.3-m NEOCP 1 115 344
Dec-20 2015-Y54
PDF Version
2015 YS1 C 695 2.3-m NEOCP 1 116 345
Dec-20 2015-Y60
PDF Version
2015 YU1 C 695 2.3-m NEOCP 1 117 346
Dec-20 2015-Y61
PDF Version
2015 YV1 C 695 2.3-m NEOCP 1 118 347
Dec-21 2015-Y62
PDF Version
2011 YW10 R, VI, D 695 2.3-m VI 1 119 348
Dec-25 2015-Y79
PDF Version
2015 YS7 C 695 2.3-m NEOCP 1 120 349
Total 17 37

2016

UTC Date MPEC Object Result Obs Code Telescope Status Obj/MPEC Total MPECs Total Objects
Apr-08 2016-G115
PDF Version
2016 EU85 E, VI 290 1.8-m DOU 1 121 350
Nov-25 2016-W72
PDF Version
2016 VV3 E, VI 290 1.8-m DOU 1 122 351
Apr-08 2016-W105
PDF Version
2016 XF261 R, VI 290 1.8-m DOU 1 123 352
Total 3 3

Page last updated on: December 12, 2016