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17747 (1998 BJ42)
Classification: Main-belt Asteroid          SPK-ID: 2017747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709139692626519 2.6852e-08  
a 2.317611024830373 6.0936e-09 au
q 1.921498925369732 6.2313e-08 au
i 2.274550003581832 3.5524e-06 deg
node 155.8289046826515 8.6614e-05 deg
peri 317.9220442889701 8.7496e-05 deg
M 92.14450529590532 1.182e-05 deg
tp 2458670.642630695435
(2019-Jul-06.14263070)
4.1858e-05 TDB
period 1288.722019487801
3.53
5.0826e-06
1.392e-08
d
yr
n .2793465111607863 1.1017e-09 deg/d
Q 2.713723124291015 7.1351e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1403  
   data-arc span      9237 days (25.29 yr)  
   first obs. used      1995-02-24  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:14:38  

Additional Information
 Earth MOID = .938673 au 
 Jupiter MOID = 2.38708 au 
 T_jup = 3.559 
[ 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 15.5   n/a MPO458988  

17747 (1998 BJ42)          Discovered 1998-Jan-26 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/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
1950-May-29 19:01 < 00:01 Iris 0.042344368763284 0.0423428592584071 0.0423458788111342 4.92595588208208 4.9259558545216 2433431.292524094 0.289656961028175 325.156387689463 49.2977782595132 79.8111857906686 126470.895620909 T 24 CATAB v2.0f-lin.ifort 2020-Jun-23 18:14:54 2020-Jun-23 18:15
1962-Nov-23 16:16 < 00:01 Iris 0.0347516605639701 0.03475002688865 0.0347532951589367 5.23019494437426 5.23019491274568 2437992.177794251 0.440610205898438 322.26095661721 34.8573366679726 -76.7157499860128 145152.333140602 T 24 CATAB v2.0f-lin.ifort 2020-Jun-23 18:14:54 2020-Jun-23 18:15
2116-Apr-22 11:16 < 00:01 Iris 0.0366303777681644 0.0366216700336525 0.0366390869720935 4.78906848694921 4.78906845417889 2494024.969445284 0.389439483399005 569.113648187872 49.3696044517842 40.4800349675124 72398.757719176 T 24 CATAB v2.0f-lin.ifort 2020-Jun-23 18:14:54 2020-Jun-23 18:15
2128-Oct-16 19:18 < 00:01 Iris 0.0382769968265821 0.0382624359388255 0.0382915606378443 5.58309792320036 5.58309789629988 2498585.304232648 0.979122268076644 897.707373026697 35.4505344732884 36.06126940872 95192.4749310455 T 24 CATAB v2.0f-lin.ifort 2020-Jun-23 18:14:54 2020-Jun-23 18:15
2134-Oct-26 07:06 00:12 Psych 0.0360621879225387 0.0360550848255056 0.0360692912141001 2.22597521625641 2.22597506553297 2500785.795836579 11.9795408199296 377.588154398166 40.8537058603806 -20.7532838372768 48519.2993248101 T 24 CATAB v2.0f-lin.ifort 2020-Jun-23 18:14:54 2020-Jun-23 18:15
2194-Jul-29 14:26 00:21 Psych 0.0217145700076403 0.0217102955124854 0.021718845406875 2.16307895114785 2.1630786935575 2522612.101626395 21.2362633450404 309.773079857771 43.7577522909556 -47.2562430912729 54812.0661322669 T 24 CATAB v2.0f-lin.ifort 2020-Jun-23 18:14:54 2020-Jun-23 18:15

Alternate Designations
 1998 BJ42 = 1995 DD12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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