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263932 Speyer (2009 HY44)
Classification: Main-belt Asteroid          SPK-ID: 2263932
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2610940432699648 8.0712e-08  
a 2.695737628206724 3.373e-08 au
q 1.991896591263245 2.1214e-07 au
i 12.94273963074521 8.5027e-06 deg
node 31.81614570443876 3.6344e-05 deg
peri 257.8318645436857 4.0723e-05 deg
M 180.8343917896709 2.2614e-05 deg
tp 2460005.075873487367
(2023-Mar-01.57587349)
0.00011314 TDB
period 1616.645724303429
4.43
3.0342e-05
8.307e-08
d
yr
n .2226832970192741 4.1794e-09 deg/d
Q 3.399578665150203 4.2536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      7030 days (19.25 yr)  
   first obs. used      2001-10-18  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:05:46  

Additional Information
 Earth MOID = 1.02215 au 
 Jupiter MOID = 1.97481 au 
 T_jup = 3.285 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO454963  

263932 Speyer           Discovered 2009 Apr. 22 by E. Schwab at the Tzec Maun Observatory, Mayhill.
Speyer is one of Germany's oldest cities, founded by the Romans in 10 BC. The city is dominated by the cathedral, which is the world's largest Romanesque church and a world heritage site.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110615/MPCPages.arcLast Updated: 2013-03-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1954-Mar-26 07:02 00:04 Jupiter 1.96202115790225 1.96202000178319 1.96202231403525 1.94157296094638 1.70478363361123 2434827.793111863 3.58227165969624 308.148909740907 194.546570719692 -55.9878720100676 474036.688025108 T 12 CATAB v2.0f-lin.ifort 2021-Apr-14 03:05:47 2021-Apr-14 03:05
1989-Jun-08 20:52 00:02 Jupiter 1.95905075602538 1.95904979802501 1.95905171403567 2.56861484708692 2.39437982644418 2447686.369241994 1.49453136959019 255.319212710805 29.1191925473991 -81.4846605601403 957711.169363388 T 12 CATAB v2.0f-lin.ifort 2021-Apr-14 03:05:47 2021-Apr-14 03:05
2179-Dec-20 12:52 00:09 Jupiter 1.99551294778529 1.99551121518061 1.99551468045996 1.16452813704519 0.712178826366784 2517277.036318081 9.31791973585698 6425.08879699876 543.950293118485 7.68286867165362 243080.011657395 T 12 CATAB v2.0f-lin.ifort 2021-Apr-14 03:05:47 2021-Apr-14 03:05

Alternate Designations
 2009 HY44 = 2005 PP4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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