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18348 (1990 BM1)
Classification: Main-belt Asteroid          SPK-ID: 2018348
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2413676189214918 7.8352e-09  
a 2.357392982933554 8.3895e-09 au
q 1.788394651780649 1.683e-08 au
i 25.2995082937827 3.4576e-07 deg
node 120.2828381624548 1.2893e-06 deg
peri 316.840018058127 3.549e-06 deg
M 214.237091679824 4.0363e-06 deg
tp 2459735.792219253756
(2022-Jun-05.29221925)
1.7169e-05 TDB
period 1322.045513170365
3.62
7.0573e-06
1.932e-08
d
yr
n .2723052999413709 1.4536e-09 deg/d
Q 2.926391314086458 1.0414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1780  
   data-arc span      11225 days (30.73 yr)  
   first obs. used      1990-01-22  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:27:03  

Additional Information
 Earth MOID = .856081 au 
 Jupiter MOID = 2.39087 au 
 T_jup = 3.388 
[ 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 13.48   n/a E2021B10  
diameter diameter 4.686 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.5238 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Klinglesmith III, D.A.; Goodwrench, Z. (2019) Minor Planet Bull. 46, 329-330.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
[Carreño, A.; Fornas, G.; Arce, E.; Mas, V. (2020) Minor Planet Bull. 47, 7-10.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.292   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18348 (1990 BM1)          Discovered 1990-Jan-22 by Helin, E. F. at Palomar
Reference: 20001111/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
2198-Aug-24 23:32 00:01 Amphi 0.0276687828533008 0.0276418876973208 0.0276956781397608 9.31912430453155 9.31912428223652 2524099.480255872 1.405515455079 1344.37916947176 39.4914436557266 4.04547706909122 8003.54591533561 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 02:27:51 2021-Apr-13 02:27

Alternate Designations
 1990 BM1 = 1999 LN7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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