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JPL Small-Body Database Browser
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448 Natalie (A899 UC)
Classification: Main-belt Asteroid          SPK-ID: 2000448
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876693736607371 4.4768e-08  
a 3.132350876382583 1.4696e-08 au
q 2.544504549326203 1.3681e-07 au
i 12.7262921426632 4.5228e-06 deg
node 37.27904925664118 1.7169e-05 deg
peri 293.9616357692865 2.1198e-05 deg
M 205.9478766686625 1.5432e-05 deg
tp 2459467.001305641721
(2021-Sep-09.50130564)
9.0141e-05 TDB
period 2024.902112904304
5.54
1.425e-05
3.901e-08
d
yr
n .177786371847701 1.2512e-09 deg/d
Q 3.720197203438964 1.7454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2396  
   data-arc span      43656 days (119.52 yr)  
   first obs. used      1899-10-30  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45174  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:07:32  

Additional Information
 Earth MOID = 1.56682 au 
 Jupiter MOID = 1.86165 au 
 T_jup = 3.148 
[ 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 10.30   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
diameter diameter 50.534 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.0646 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Alvarez, E.M. (2011) Minor Planet Bull. 38, 54-55.]
geometric albedo albedo 0.052   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.660   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.40, mean=15.08, max.=19.11) deg.
U-B UB 0.303   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.40, mean=15.08, max.=19.11) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

448 Natalie (A899 UC)          Discovered 1899-Oct-27 by Wolf, M. and Schwassmann, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A899 UC = 1949 UW = 1962 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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