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46257 (2001 HF44)
Classification: Main-belt Asteroid          SPK-ID: 2046257
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2543918955569905 4.0635e-08  
a 3.059738060880105 1.8901e-08 au
q 2.281365495664945 1.2052e-07 au
i 22.37063096984754 4.3607e-06 deg
node 208.407299995099 1.184e-05 deg
peri 139.5149989888794 1.4385e-05 deg
M 172.4048941731047 1.0387e-05 deg
tp 2458460.292987885037
(2018-Dec-07.79298788)
5.3039e-05 TDB
period 1954.901141164728
5.35
1.8114e-05
4.959e-08
d
yr
n .1841525345806041 1.7064e-09 deg/d
Q 3.838110626095265 2.371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1330  
   data-arc span      14464 days (39.60 yr)  
   first obs. used      1981-10-03  
   last obs. used      2021-05-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:22:37  

Additional Information
 Earth MOID = 1.3176 au 
 Jupiter MOID = 1.8334 au 
 T_jup = 3.072 
[ 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 13.45   n/a MPCxxxxx  
diameter diameter 10.658 km 2.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.075   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

46257 (2001 HF44)          Discovered 2001-Apr-16 by LONEOS at Anderson Mesa
Reference: 20020822/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
1909-Nov-06 13:58 00:02 Jupiter 1.91809468097103 1.91809334703779 1.91809601493644 5.09291268418007 5.0054538310277 2418617.081748004 2.44111989639435 446.299217693641 29.3600890676783 82.0825163587535 3370937.74116118 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:44 2021-Jul-08 21:22
1958-Apr-09 20:29 00:01 Jupiter 1.89410085014024 1.89409996932273 1.89410173096949 5.54909888042079 5.4679172321627 2436303.353811346 1.29041113194939 279.144789295133 22.1896148803823 -82.3528980922931 4396174.98136816 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:44 2021-Jul-08 21:22
2016-Sep-03 18:50 < 00:01 Jupiter 1.88822339355225 1.88822278749375 1.88822399961076 5.19747056069227 5.11043410826882 2457635.285054195 0.268537526295871 79.742025079232 29.2794957358204 86.3817351431402 3652534.03960803 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:44 2021-Jul-08 21:22
2065-Feb-01 12:24 00:01 Jupiter 1.90235298904696 1.90235236985539 1.90235360824414 5.58269002561978 5.50235659399399 2475318.016576512 1.12016025383459 236.78794515316 21.5252984668394 -84.7746873339285 4494924.41007562 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:44 2021-Jul-08 21:22
2123-Jul-02 09:42 00:02 Jupiter 1.85919942711864 1.85919812249689 1.85920073177463 5.28520844278051 5.19829387478547 2496651.904059304 2.4296211828648 445.542107149295 26.4237609968941 82.2007292298684 3736910.71659443 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:44 2021-Jul-08 21:22
2171-Nov-28 02:27 00:04 Jupiter 1.91245267208137 1.91245056065414 1.9124547835998 5.608310446811 5.52877463569314 2514332.601945146 3.49336199997257 689.65057452755 23.6355098585625 -81.5040421938431 4408984.10673244 T 33 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:44 2021-Jul-08 21:22

Alternate Designations
 2001 HF44 = 1981 TF1 = 1981 UL13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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