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24636 (1981 QM2)
Classification: Main-belt Asteroid          SPK-ID: 2024636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690249444596583 2.9418e-08  
a 2.294515034015232 6.4401e-09 au
q 1.906684757828957 6.6535e-08 au
i 4.374321912419303 3.3648e-06 deg
node 33.50779729774511 5.0158e-05 deg
peri 21.80917442522282 5.1658e-05 deg
M 50.54100968433263 1.2271e-05 deg
tp 2459022.271890157949
(2020-Jun-21.77189016)
4.309e-05 TDB
period 1269.506089092402
3.48
5.3447e-06
1.463e-08
d
yr
n .283574850954336 1.1939e-09 deg/d
Q 2.682345310201508 7.5286e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1676  
   data-arc span      14453 days (39.57 yr)  
   first obs. used      1981-08-27  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:35:56  

Additional Information
 Earth MOID = .918131 au 
 Jupiter MOID = 2.6681 au 
 T_jup = 3.573 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.99   n/a MPCxxxxx  
diameter diameter 6.486 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24636 (1981 QM2)          Discovered 1981-Aug-27 by Debehogne, H. at La Silla
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 QM2 = 1999 TO252 = 2000 BD8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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