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52757 (1998 MH4)
Classification: Main-belt Asteroid          SPK-ID: 2052757
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836157829611613 5.1605e-08  
a 2.30704124399471 9.1297e-09 au
q 1.88343205965493 1.1877e-07 au
i 25.80591570443254 6.2112e-06 deg
node 106.2706428311651 8.9347e-06 deg
peri 198.0900462590767 1.4994e-05 deg
M 194.5189613201556 1.0652e-05 deg
tp 2459984.838409744471
(2023-Feb-09.33840974)
3.8351e-05 TDB
period 1279.915990361784
3.50
7.5976e-06
2.08e-08
d
yr
n .2812684603606223 1.6696e-09 deg/d
Q 2.73065042833449 1.0806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      8266 days (22.63 yr)  
   first obs. used      1998-06-23  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:47:50  

Additional Information
 Earth MOID = .875452 au 
 Jupiter MOID = 2.50364 au 
 T_jup = 3.434 
[ 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 14.98   n/a MPCxxxxx  
diameter diameter 2.891 km 0.501 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52757 (1998 MH4)          Discovered 1998-Jun-23 by LONEOS at Anderson Mesa
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1940-Jun-28 13:50 00:04 David 0.0287201630440149 0.0287191768110523 0.0287211499219762 4.45934384817337 4.45934373021597 2429809.076392165 4.34636753506658 445.721161178512 43.0173195250024 -86.9246203979862 99662.0456788064 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 10:47:52 2021-Apr-13 10:47

Alternate Designations
 1998 MH4 = 2000 AC49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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