Ephemerides and observability details for
unnumbered Great Shefford
Observatory Minor Planet potential discoveries
This page links directly to the Minor Planet Center's Ephemeris Service to
provide up to date positions of all the objects listed below, to aid observers
in getting astrometric positions. These are unnumbered objects that have been
given provisional designations following observations from Great Shefford.
Some of these objects may eventually be attributed as discoveries from
Great Shefford, see
Possible
candidates for discovery credit (new rules).
See also the Discovery Circumstances
page of all numbered and unnumbered objects found from Great Shefford.
Other observers also have their own follow-up pages, check out
this list
of links.
Objects are listed in order of increasing distance east of
the Sun (i.e. from evening sky objects through to morning objects) and
currently observable objects (near opposition) will generally be found near the middle of
the listing.
Information compiled 23 Mar 2025 from MPC MPES
Ephemeris Summary and 1-line orbital elements. Opposition dates, RA,
Decl., Magnitudes and Elongations are approximate.
Rows in
Green denote objects in need of observation, with elongations of 90° or more and mag +21.5 or brighter and observed within the last month
and useful for orbit improvement or numbering.
Rows in
Red denote objects in need of observation, with elongations of 90° or more and mag +21.5 or brighter but
not observed within the last month and useful for orbit improvement or
numbering.
25/01/2026
2012 RP9
00 50
+10.2
22.4
13
07/01/2022
5
0
Not necessary for orbit improvement.
5 opps, 2008-2022, MPEC 2022-A85
28/12/2025
2009 AN1
01 07
+04.0
23.8
14
02/03/2022
6
0
Not necessary for orbit improvement.
6 opps, 2005-2022, MPO 676952
05/02/2026
2016 QP45
02 04
+16.6
23.4
32
15/12/2020
2
0
Not necessary for orbit improvement.
2 opps, 2016-2020, MPO 782297
03/05/2026
2012 FX1
03 59
+20.3
23.8
59
10/04/2019
3
2
Not necessary for orbit improvement.
3 opps, 2012-2019, MPO 640306
21/02/2026
2015 TN23
06 01
+19.2
23.8
87
24/10/2019
3
1
Not necessary for orbit improvement.
3 opps, 2002-2019, MPO 544622
23/05/2026
2016 VY11
09 34
+17.3
22.8
137
25/02/2025
8
0
Not necessary for orbit improvement.
8 opps, 2005-2025, MPEC 2025-E66
15/05/2026
2008 YT24
09 40
+18.3
22.6
138
25/02/2025
7
0
Not necessary for orbit improvement.
7 opps, 2004-2025, MPEC 2025-E66
27/03/2025
2008 UE99
12 22
-03.1
21.6
177
16/10/2023
7
0
Not necessary for orbit improvement.
7 opps, 2005-2023, MPO 781294
09/06/2025
2008 WH2
17 31
-26.4
22.7
99
13/01/2023
6
0
Not necessary for orbit improvement.
6 opps, 2008-2023, MPO 732681
22/06/2025
2008 TR156
18 17
-37.1
23.1
89
28/03/2023
7
0
Not necessary for orbit improvement.
7 opps, 2008-2023, MPO 740145
04/07/2025
2004 PO95
18 18
-44.6
22.5
90
26/08/2004
1
Useful for orbit improvement.
16-day arc, MPO 104306
07/07/2025
2011 SV25
19 02
-23.9
24.1
79
13/11/2022
7
0
Not necessary for orbit improvement.
7 opps, 2004-2022, MPO 732853
01/09/2025
2020 FD7 = 2012 KD37
20 50
-25.3
23.1
55
02/03/2024
4
2
Not necessary for orbit improvement.
4 opps, 2012-2024, MPEC 2024-E23
23/09/2025
2013 YX35
21 48
-13.9
24.1
39
08/11/2021
6
0
Not necessary for orbit improvement.
6 opps, 1996-2021, MPO 703671
27/09/2025
2007 XT16
22 05
-10.9
23.5
34
05/01/2022
7
0
Not necessary for orbit improvement.
7 opps, 2007-2022, MPEC 2022-A40
08/12/2025
2012 XH54
22 10
-08.0
22.8
31
21/02/2022
5
0
Not necessary for orbit improvement.
5 opps, 2009-2022, MPO 686843
08/09/2025
2007 EA183
22 10
-14.3
23.7
34
26/03/2023
6
0
Not necessary for orbit improvement.
6 opps, 2007-2023, MPO 740090
14/09/2025
2017 DH110
22 25
-06.9
24.0
28
17/04/2023
5
1
Not necessary for orbit improvement.
5 opps, 2001-2023, MPO 750185
17/10/2025
2012 FW1
23 03
-05.4
24.3
18
18/02/2023
6
0
Useful for orbit improvement.
6 opps, 2008-2023, MPEC 2023-R23
07/11/2025
2015 XV218
23 25
+14.0
23.0
17
14/12/2020
5
1
Useful for orbit improvement.
5 opps, 2010-2020, MPEC 2023-P22
07/12/2025
2005 WU57
23 55
+00.2
21.3
4
12/05/2023
7
0
Not necessary for orbit improvement.
7 opps, 2005-2023, MPO 750185
06/01/2026
2007 XY17
00 04
+09.6
22.2
9
02/07/2024
6
0
Not necessary for orbit improvement.
6 opps, 2007-2024, MPO 845248
Options:
By default, ephemerides are topocentric for Great Shefford, begin now and are for 12 hours at 1
hour intervals and suppress output when the object is unobservable.
Start date for ephemerides: Number of dates to output
Ephemeris interval: Ephemeris
units: days hours minutes seconds
For daily ephemerides, enter desired offset from 0h UT: hours
If you select 8-line MPC format, you may display the residual block for the
objects selected:
Show residuals blocks. Show only residual lines containing observations from code .
If you select 8-line MPC format the elements will be displayed with the ephemerides.
If you select any format other than 8-line MPC format, only the elements are returned.
In such cases your browser should download the elements file and save it
to your local disk.
The summary lists the current J2000.0 coordinates, visual magnitude and
solar elongation of the selected minor planets, as well as information on
the date of last observation (where available), forthcoming opposition
data and details on the latest published orbit. The opposition data lists
the date of the next opposition and the declination and visual magnitude
at that time.
The list of available formats for the orbital elements was correct at the
time this document was prepared. It is possible that the Minor Planet
Center now supports futher formats. If you select the summary option,
any newly supported formats will be listed.
Elements
The elements supplied are the latest published elements for the
specified objects. Elements will be found even if the designation you
enter is a non-principal designation in an identification or if the object
has been numbered.
Ephemerides can be supplied for objects with only Väisälä
elements, but the elements themselves are not supplied.
Ephemerides
The ephemerides supplied for minor planets and comets are
perturbed (if the orbits were computed with perturbations) and can be
generated over the time period 1900 to 2040. Objects with unperturbed
orbit solutions will return unperturbed ephemerides. Objects must be
identified in images by their motion, not by their apparent closeness
to a predicted position.
The time-scale of the supplied ephemerides is UTC.
If you desire a topocentric ephemeris, enter your observatory code
in the appropriate box. When local circumstances are displayed, the
azimuths are reckoned westwards from the south meridian.
As an aide-mémoire, the packed
form of the object's designation (as used on the
astrometric observation record)
is displayed immediately above the ephemeris.
