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100979 (1998 QH27)
Classification: Main-belt Asteroid          SPK-ID: 2100979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .246342889622145 6.5432e-08  
a 2.342228402776003 1.0867e-08 au
q 1.765237089881101 1.4767e-07 au
i 22.59876638822611 7.6427e-06 deg
node 320.1930235016402 1.0305e-05 deg
peri 73.07612488275863 2.3386e-05 deg
M 55.75769857848552 1.4842e-05 deg
tp 2458997.710889376370
(2020-May-28.21088938)
5.4087e-05 TDB
period 1309.309417097714
3.58
9.1122e-06
2.495e-08
d
yr
n .2749541058048718 1.9136e-09 deg/d
Q 2.919219715670904 1.3544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      9157 days (25.07 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:39  

Additional Information
 Earth MOID = .884438 au 
 Jupiter MOID = 2.87277 au 
 T_jup = 3.422 
[ 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 15.51   n/a E2021B55  
diameter diameter 2.076 km 0.486 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.311   0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100979 (1998 QH27)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
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
2055-Oct-05 08:19 < 00:01 Hebe 0.0446020554059204 0.044599891352129 0.0446042219080516 13.8296526124534 13.829652602375 2471910.846269733 0.858498938381696 641.236594067756 61.1156390273762 -81.9847222138402 108112.181549324 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:41 2021-Apr-13 15:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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