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37974 (1998 HE115)
Classification: Main-belt Asteroid          SPK-ID: 2037974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08688751915120196 4.4717e-08  
a 2.980798779789546 1.9893e-08 au
q 2.721804568724702 1.2722e-07 au
i 12.9233014443509 4.1514e-06 deg
node 114.9049003895969 2.0531e-05 deg
peri 136.3164927922241 3.6984e-05 deg
M 144.3255025494392 2.8648e-05 deg
tp 2458642.905024536128
(2019-Jun-08.40502454)
0.0001516 TDB
period 1879.738413341475
5.15
1.8818e-05
5.152e-08
d
yr
n .191516009592023 1.9172e-09 deg/d
Q 3.23979299085439 2.1622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      8297 days (22.72 yr)  
   first obs. used      1998-04-23  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56207  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:27:58  

Additional Information
 Earth MOID = 1.72204 au 
 Jupiter MOID = 1.9152 au 
 T_jup = 3.215 
[ 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 14.62   n/a E2021B10  
diameter diameter 5.073 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.131   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37974 (1998 HE115)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ 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
1928-Jun-19 18:09 00:03 Jupiter 1.97583761853982 1.97583706462384 1.97583817245648 2.63784819287972 2.46999238822618 2425417.255981588 3.04147612763934 235.972067840691 16.6669586022289 86.9984205957165 2630670.12584297 T 21 CATAB v2.0g-lin.ifort 2021-Aug-25 16:28:00 2021-Aug-25 16:28
1965-Feb-14 10:29 00:02 Jupiter 1.92330265442367 1.92330212966841 1.92330317917882 2.90772482247211 2.75210167330653 2438805.936573583 1.66683595497957 107.179956999714 22.222297217072 -84.4045119753672 1878282.84405043 T 21 CATAB v2.0g-lin.ifort 2021-Aug-25 16:28:00 2021-Aug-25 16:28
2001-Sep-06 15:04 < 00:01 Jupiter 1.95291321326816 1.95291277923129 1.95291364730502 3.85098281318998 3.7366594057854 2452159.127872942 0.453504240237662 72.6318519286455 18.4523755803095 -85.3674182765126 3365696.12607429 T 21 CATAB v2.0g-lin.ifort 2021-Aug-25 16:28:00 2021-Aug-25 16:28
2047-Jan-05 00:03 00:01 Jupiter 1.99373500331202 1.99373433926458 1.99373566735979 2.74055727463478 2.58088551281253 2468715.502204275 1.06946159904733 100.192334928804 18.5989055679912 -89.8520072172936 2803746.34984259 T 21 CATAB v2.0g-lin.ifort 2021-Aug-25 16:28:00 2021-Aug-25 16:28
2083-Sep-01 05:10 00:02 Jupiter 1.92137705267979 1.92137639287096 1.92137771249081 2.89755723749632 2.74119594061649 2482103.715381420 2.27801094634291 176.613091816987 25.0541504086517 -79.8020914407911 2875087.24692273 T 21 CATAB v2.0g-lin.ifort 2021-Aug-25 16:28:00 2021-Aug-25 16:28
2120-Mar-25 02:43 00:03 Jupiter 1.93400012521731 1.93399956137237 1.93400068906611 3.79815916656043 3.68104400564539 2495457.612939384 3.19575924189358 200.502732527186 17.2736869697959 -86.2991066901089 2801865.62592637 T 21 CATAB v2.0g-lin.ifort 2021-Aug-25 16:28:00 2021-Aug-25 16:28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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