Orbital elements:
1984 QY1 = 2007 VB1 = 2011 NQ Earth MOID = 0.1338 AU
Id. A. Boattini, G. B. Valsecchi, Minor Planet Center
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 295.38540 (2000.0) P Q
n 0.24976908 Peri. 336.98081 -0.49783780 -0.85418282
a 2.4971441 Node 142.39309 +0.82905530 -0.51952825
e 0.8943780 Incl. 14.23883 +0.25460722 +0.02149647
P 3.95 H 15.1 G 0.15 U 4
Orbital elements:
2011 NQ Earth MOID = 0.1347 AU
Epoch 2011 June 28.0 TT = JDT 2455740.5 MPC
M 281.65975 (2000.0) P Q
n 0.24576055 Peri. 337.26495 -0.50072953 -0.85178565
a 2.5242242 Node 142.28034 +0.82784997 -0.52323133
e 0.8986630 Incl. 14.58389 +0.25285247 +0.02627150
P 4.01 H 15.3 G 0.15
From 18 observations 2011 July 2-5.