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JPL Small-Body Database Browser
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77677 (2001 MA25)
Classification: Main-belt Asteroid          SPK-ID: 2077677
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2895695374768224 4.72e-08  
a 2.453557461873104 1.2546e-08 au
q 1.743081962465703 1.138e-07 au
i 3.183883749596712 4.9184e-06 deg
node 233.1958379113319 7.1253e-05 deg
peri 331.6181710413661 7.1575e-05 deg
M 291.139744544941 6.493e-06 deg
tp 2458869.009036326729
(2020-Jan-20.50903633)
2.638e-05 TDB
period 1403.759722336624
3.84
1.0767e-05
2.948e-08
d
yr
n .2564541454436112 1.967e-09 deg/d
Q 3.164032961280505 1.6179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      981  
   data-arc span      10408 days (28.50 yr)  
   first obs. used      1990-09-25  
   last obs. used      2019-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .551  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:38:34  

Additional Information
 Earth MOID = .740261 au 
 Jupiter MOID = 1.80664 au 
 T_jup = 3.433 
[ 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 15.3   n/a MPO432328  
rotation period rot_per 5.304712 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]

77677 (2001 MA25)          Discovered 2001-Jun-16 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 MA25 = 2000 AN163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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