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54789 (2001 MZ7)
Classification: Amor [NEO]          SPK-ID: 2054789
[ 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 526 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2874735566683441 1.7059e-08  
a 1.776101170794654 2.7603e-09 au
q 1.265519050223505 3.0269e-08 au
i 24.47039772100271 1.3797e-06 deg
node 130.0833010487172 2.1371e-06 deg
peri 20.02609400764646 4.5612e-06 deg
M 202.4360742653367 5.753e-06 deg
tp 2459578.902737635642
(2021-Dec-30.40273764)		 1.454e-05 TDB
period 864.5696336497289
2.37		 2.0155e-06
5.518e-09		 d
yr
n .4163921400758451 9.7069e-10 deg/d
Q 2.286683291365803 3.5538e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3087  
   data-arc span      15331 days (41.97 yr)  
   first obs. used      1978-10-25  
   last obs. used      2020-10-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37434  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:04:00  

Additional Information
 Earth MOID = .292069 au 
 Jupiter MOID = 2.76256 au 
 T_jup = 3.948 
[ 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 14.99   n/a E2021B10  
diameter diameter 1.567 km 0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 37.57 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; et al. (2005) Icarus 173, 108-131.]
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.856   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

54789 (2001 MZ7)          Discovered 2001-Jun-21 by LINEAR at Socorro
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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