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 16 Dec 2024 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.
08/12/2025
2012 XH54
18 53
-21.8
23.2
18
21/02/2022
5
0
Not necessary for orbit improvement.
5 opps, 2009-2022, MPO 686843
23/09/2025
2013 YX35
18 57
-23.5
24.2
19
08/11/2021
6
0
Not necessary for orbit improvement.
6 opps, 1996-2021, MPO 703671
27/09/2025
2007 XT16
19 11
-22.3
23.5
22
05/01/2022
7
0
Not necessary for orbit improvement.
7 opps, 2007-2022, MPEC 2022-A40
08/09/2025
2007 EA183
19 57
-22.5
23.5
32
26/03/2023
6
0
Not necessary for orbit improvement.
6 opps, 2007-2023, MPO 740090
14/09/2025
2017 DH110
20 24
-14.4
24.0
41
17/04/2023
5
1
Not necessary for orbit improvement.
5 opps, 2001-2023, MPO 750185
17/10/2025
2012 FW1
20 28
-17.9
24.4
40
18/02/2023
6
0
Useful for orbit improvement.
6 opps, 2008-2023, MPEC 2023-R23
07/11/2025
2015 XV218
20 44
+02.2
23.1
52
14/12/2020
5
1
Useful for orbit improvement.
5 opps, 2010-2020, MPEC 2023-P22
07/12/2025
2005 WU57
20 48
-14.4
21.9
46
12/05/2023
7
0
Not necessary for orbit improvement.
7 opps, 2005-2023, MPO 750185
06/01/2026
2007 XY17
21 00
-06.8
22.7
52
02/07/2024
6
0
Not necessary for orbit improvement.
6 opps, 2007-2024, MPO 845248
25/01/2026
2012 RP9
21 21
-18.7
22.7
52
07/01/2022
5
0
Not necessary for orbit improvement.
5 opps, 2008-2022, MPEC 2022-A85
05/02/2026
2016 QP45
21 42
-14.3
22.8
58
15/12/2020
2
0
Not necessary for orbit improvement.
2 opps, 2016-2020, MPO 782297
28/12/2025
2009 AN1
23 00
-09.8
24.0
78
02/03/2022
6
0
Not necessary for orbit improvement.
6 opps, 2005-2022, MPO 676952
03/05/2026
2012 FX1
03 01
+13.1
22.7
142
10/04/2019
3
2
Useful for orbit improvement.
3 opps, 2012-2019, MPO 640306
26/12/2024
2015 TN23
06 28
+22.0
22.0
168
24/10/2019
3
1
Not necessary for orbit improvement.
3 opps, 2002-2019, MPO 544622
04/01/2025
2017 RB18
07 14
+16.5
22.1
156
05/12/2024
9
0
Not necessary for orbit improvement.
9 opps, 2011-2024, MPEC 2024-XG6
17/02/2025
2016 VY11
10 26
+11.3
22.9
110
09/09/2023
7
0
Not necessary for orbit improvement.
7 opps, 2005-2023, MPEC 2023-R94
19/02/2025
2008 YT24
10 36
+13.7
22.9
109
05/11/2023
6
0
Not necessary for orbit improvement.
6 opps, 2004-2023, MPO 781310
27/03/2025
2008 UE99
12 14
-02.0
23.4
80
16/10/2023
7
0
Not necessary for orbit improvement.
7 opps, 2005-2023, MPO 781294
04/07/2025
2004 PO95
15 10
-33.0
23.4
33
26/08/2004
1
Useful for orbit improvement.
16-day arc, MPO 104306
09/06/2025
2008 WH2
15 42
-24.5
23.1
26
13/01/2023
6
0
Not necessary for orbit improvement.
6 opps, 2008-2023, MPO 732681
22/06/2025
2008 TR156
16 21
-31.8
23.3
19
28/03/2023
7
0
Not necessary for orbit improvement.
7 opps, 2008-2023, MPO 740145
07/07/2025
2011 SV25
16 36
-23.1
24.2
14
13/11/2022
7
0
Not necessary for orbit improvement.
7 opps, 2004-2022, MPO 732853
01/09/2025
2020 FD7 = 2012 KD37
17 03
-23.7
22.6
8
02/03/2024
4
2
Not necessary for orbit improvement.
4 opps, 2012-2024, MPEC 2024-E23
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.
