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52381 (1993 HA)
Classification: Amor [NEO]          SPK-ID: 2052381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 102 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441093770554014 2.5991e-08  
a 1.278191023595087 1.3715e-09 au
q 1.093991711426993 3.314e-08 au
i 7.724925869806338 3.1649e-06 deg
node 183.2675047416088 1.728e-05 deg
peri 263.8671719424598 1.9814e-05 deg
M 164.4318518351337 8.7502e-06 deg
tp 2458959.412041802599
(2020-Apr-19.91204180)
1.2743e-05 TDB
period 527.8275710115182
1.45
8.4956e-07
2.326e-09
d
yr
n .682040915956897 1.0978e-09 deg/d
Q 1.462390335763181 1.5692e-09 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   data-arc span      9540 days (26.12 yr)  
   first obs. used      1993-04-17  
   last obs. used      2019-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47023  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:45:05  

Additional Information
 Earth MOID = .168024 au 
 Jupiter MOID = 3.67638 au 
 T_jup = 5.043 
[ 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 20.07   n/a MPCxxxxx  
rotation period rot_per 4.1103 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Monteiro, F.; Silva, J.S.; Lazzaro, D.; Arcoverde, P.; et al (2017) Minor Planet Bull. 44, 20-22.]
[Perna, D.; Popescu, M.; Monteiro, F.; Lantz, C.; et al. (2017) Astron. Astrophys. 597, A57.]
[Monteiro, F.; Silva, J.S.; Lazzaro, D.; Arcoverde, P.; et al. (2018) Plan. Space Sci. 164, 54-74.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]

52381 (1993 HA)          Discovered 1993-Apr-17 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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