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JPL Small-Body Database Browser
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48798 Penghuanwu (1997 TS18)
Classification: Main-belt Asteroid          SPK-ID: 2048798
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346455837659596 4.0039e-08  
a 2.765224710802888 1.7955e-08 au
q 2.392899415372776 1.1844e-07 au
i 8.355578565077638 5.1889e-06 deg
node 333.7632529636905 3.1129e-05 deg
peri 304.0350522330119 3.8531e-05 deg
M 24.38321986514316 2.4624e-05 deg
tp 2458886.741822771970
(2020-Feb-07.24182277)		 0.0001145 TDB
period 1679.554383243487
4.60		 1.6359e-05
4.479e-08		 d
yr
n .2143425682381196 2.0877e-09 deg/d
Q 3.137550006233 2.0373e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1191  
   data-arc span      7939 days (21.74 yr)  
   first obs. used      1997-10-06  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:13:53  

Additional Information
 Earth MOID = 1.38869 au 
 Jupiter MOID = 2.06911 au 
 T_jup = 3.311 
[ 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 14.0   n/a MPO474367  
diameter diameter 4.201 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.315   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48798 Penghuanwu           Discovered 1997 Oct. 6 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Chinese theoretical physicist Peng Huanwu (b. 1915) made many contributions to theoretical physics and played an important role in the development of scientific research in China, especially in promoting interdisciplinary scientific studies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

[ 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
2019-Feb-15 02:17 < 00:01 Iris 0.0474711274434826 0.047470172101359 0.04747208278597 6.1405751866665 6.14057516694525 2458529.594985204 0.584730888435287 107.433359283142 47.517480214006 -88.0709578776875 149347.620263113 T 19 CATAB v2.0f-lin.ifort 2020-Feb-23 09:14:09 2020-Feb-23 09:14

Alternate Designations
 1997 TS18 = 1998 XE30 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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