Winer Observatory MPECs

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:

Telescope	Description
RR20	Rincon Ranch Observatory 0.5-m (20-inch) Newtonian
2.1-m	Kitt Peak National Observatory 2.1-m (84-inch) Cassegrain
0.9-m	Kitt Peak National Observatory 0.9-m (38-inch) Cassegrain
2.3-m	University of Arizona 2.3-m (90-inch) Prime Focus Camera
1.8-m	VATT 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:

2012, grant for dorm fees at observing facilities such as Kitt Peak
2013, Grant NNX13AK53G for software upgrades, a filter, and overhead to purchase a computer

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:

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