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21800 (1999 TM1)
Classification: Main-belt Asteroid          SPK-ID: 2021800
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05687794537944756 4.0384e-08  
a 2.22552305969074 6.1589e-09 au
q 2.098939880660949 8.9798e-08 au
i 8.415151698829739 5.1429e-06 deg
node 20.71292909758712 2.2873e-05 deg
peri 47.34755927075464 4.5641e-05 deg
M 152.7071809540731 3.9145e-05 deg
tp 2458882.096951228791
(2020-Feb-02.59695123)
0.00013168 TDB
period 1212.681004263511
3.32
5.034e-06
1.378e-08
d
yr
n .2968629002469089 1.2323e-09 deg/d
Q 2.35210623872053 6.5092e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1791  
   data-arc span      11584 days (31.72 yr)  
   first obs. used      1989-10-09  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50007  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:11:33  

Additional Information
 Earth MOID = 1.11941 au 
 Jupiter MOID = 2.78277 au 
 T_jup = 3.630 
[ 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 14.77   n/a MPO614063  
diameter diameter 3.078 km 0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.295   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21800 (1999 TM1)          Discovered 1999-Oct-01 by Korlevic, K. at Visnjan
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TM1 = 1989 TQ17 = 1998 KX24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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