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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05687794558733458 4.0382e-08  
a 2.225523059619489 6.1535e-09 au
q 2.098939880131093 8.9792e-08 au
i 8.415151563746203 5.1394e-06 deg
node 20.71293006808201 2.2831e-05 deg
peri 47.34755873927962 4.5566e-05 deg
M 152.7071805923223 3.9102e-05 deg
tp 2458882.096952472073
(2020-Feb-02.59695247)
0.00013153 TDB
period 1212.681004205275
3.32
5.0295e-06
1.377e-08
d
yr
n .2968629002611651 1.2312e-09 deg/d
Q 2.352106239107884 6.5035e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1807  
   data-arc span      11596 days (31.75 yr)  
   first obs. used      1989-10-09  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:03:01  

Additional Information
 Earth MOID = 1.11941 au 
 Jupiter MOID = 2.78277 au 
 T_jup = 3.630 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457287.5 (2015-Sep-22.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05635605927038635 4.0475e-08  
q 2.100568133517906 9.0006e-08 au
tp 2457667.146680283495
(2016-Oct-05.64668028)
0.00013247 TDB
node 20.74724980261155 2.2813e-05 deg
peri 46.81559702137864 4.585e-05 deg
i 8.418556213352023 5.1403e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1807  
   data-arc span      11596 days (31.75 yr)  
   first obs. used      1989-10-09  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:03:01  

Additional Information
 Jupiter MOID = 2.78277 au 
 T_jup = 3.630 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.638257238718096E-15 -3.635477485525815E-15 -2.321226273023884E-12 2.348299024397978E-15 -7.240709173422351E-13 -3.390681237043085E-16
q -3.635477485525815E-15 8.10107455840195E-15 5.202850347754388E-12 -5.411525333909838E-15 1.619409771194042E-12 9.633692564716901E-16
tp -2.321226273023884E-12 5.202850347754388E-12 1.754704290584098E-8 -1.017395832007655E-11 5.27430736095828E-9 5.429248592498448E-13
node 2.348299024397978E-15 -5.411525333909838E-15 -1.017395832007655E-11 5.204315408230219E-10 -5.171523289892125E-10 1.068083106270914E-11
peri -7.240709173422351E-13 1.619409771194042E-12 5.27430736095828E-9 -5.171523289892125E-10 2.102262455683777E-9 -1.037288717051711E-11
i -3.390681237043085E-16 9.633692564716901E-16 5.429248592498448E-13 1.068083106270914E-11 -1.037288717051711E-11 2.642305004687991E-11

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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