| Parameter |
Value |
| Designation |
C/2002 VQ94 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-02-06T20:04:08.872320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:24Z |
| Obs used |
1292 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2006-09-02.0000000 |
| e |
0.96628664 |
| q (au) |
6.796765 |
| a (au) |
201.604500 |
| i (deg) |
70.516275 |
| Ω (om, deg) |
35.015090 |
| ω (w, deg) |
100.053210 |
| M (ma, deg) |
0.071329 |
Magnitude
Scatter + Global Linear
$$
M_a = (4.352 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
4.352 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.853 |
| k |
0.800 |
| δ90 |
10.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
14:05:54.03 |
-64:25:57.2 |
HIP 68804 |
6.73 |
| 2026-05-12 12:00 |
14:05:46.94 |
-64:25:40.5 |
HIP 68804 |
6.01 |
| 2026-05-13 00:00 |
14:05:39.87 |
-64:25:23.6 |
HIP 68804 |
5.30 |
| 2026-05-13 12:00 |
14:05:32.83 |
-64:25:06.4 |
HIP 68804 |
4.64 |
| 2026-05-14 00:00 |
14:05:25.81 |
-64:24:48.8 |
HIP 68804 |
4.02 |
| 2026-05-14 12:00 |
14:05:18.81 |
-64:24:30.9 |
HIP 68804 |
3.47 |
| 2026-05-15 00:00 |
14:05:11.83 |
-64:24:12.7 |
HIP 68804 |
3.05 |
| 2026-05-15 12:00 |
14:05:04.88 |
-64:23:54.2 |
HIP 68804 |
2.79 |
| 2026-05-16 00:00 |
14:04:57.96 |
-64:23:35.4 |
HIP 68804 |
2.76 |
| 2026-05-16 12:00 |
14:04:51.06 |
-64:23:16.3 |
HIP 68804 |
2.95 |
| 2026-05-17 00:00 |
14:04:44.19 |
-64:22:56.9 |
HIP 68804 |
3.33 |
| 2026-05-17 12:00 |
14:04:37.34 |
-64:22:37.2 |
HIP 68804 |
3.84 |
| 2026-05-18 00:00 |
14:04:30.53 |
-64:22:17.2 |
HIP 68804 |
4.43 |
| 2026-05-18 12:00 |
14:04:23.74 |
-64:21:56.9 |
HIP 68804 |
5.09 |
| 2026-05-19 00:00 |
14:04:16.98 |
-64:21:36.3 |
HIP 68804 |
5.77 |
| 2026-05-19 12:00 |
14:04:10.25 |
-64:21:15.4 |
HIP 68804 |
6.49 |
| 2026-05-20 00:00 |
14:04:03.55 |
-64:20:54.2 |
HIP 68804 |
7.22 |
| 2026-05-20 12:00 |
14:03:56.89 |
-64:20:32.7 |
HIP 68804 |
7.96 |
| 2026-05-21 00:00 |
14:03:50.25 |
-64:20:11.0 |
HIP 68804 |
8.71 |
| 2026-05-21 12:00 |
14:03:43.65 |
-64:19:49.0 |
HIP 68804 |
9.47 |
| 2026-05-22 00:00 |
14:03:37.07 |
-64:19:26.7 |
HIP 68804 |
10.23 |
| 2026-05-22 12:00 |
14:03:30.53 |
-64:19:04.1 |
HIP 68804 |
10.99 |
| 2026-05-23 00:00 |
14:03:24.03 |
-64:18:41.3 |
HIP 68540 |
10.92 |
| 2026-05-23 12:00 |
14:03:17.56 |
-64:18:18.2 |
HIP 68540 |
10.12 |
| 2026-05-24 00:00 |
14:03:11.12 |
-64:17:54.8 |
HIP 68540 |
9.33 |
| 2026-05-24 12:00 |
14:03:04.72 |
-64:17:31.2 |
HIP 68540 |
8.53 |
| 2026-05-25 00:00 |
14:02:58.35 |
-64:17:07.3 |
HIP 68540 |
7.73 |
| 2026-05-25 12:00 |
14:02:52.02 |
-64:16:43.2 |
HIP 68540 |
6.94 |
| 2026-05-26 00:00 |
14:02:45.72 |
-64:16:18.8 |
HIP 68540 |
6.15 |
| 2026-05-26 12:00 |
14:02:39.46 |
-64:15:54.1 |
HIP 68540 |
5.36 |
| 2026-05-27 00:00 |
14:02:33.24 |
-64:15:29.2 |
HIP 68540 |
4.58 |
| 2026-05-27 12:00 |
14:02:27.05 |
-64:15:04.1 |
HIP 68540 |
3.80 |
| 2026-05-28 00:00 |
14:02:20.91 |
-64:14:38.7 |
HIP 68540 |
3.04 |
| 2026-05-28 12:00 |
14:02:14.80 |
-64:14:13.0 |
HIP 68540 |
2.29 |
| 2026-05-29 00:00 |
14:02:08.73 |
-64:13:47.2 |
HIP 68540 |
1.59 |
| 2026-05-29 12:00 |
14:02:02.70 |
-64:13:21.0 |
HIP 68540 |
1.03 |
| 2026-05-30 00:00 |
14:01:56.71 |
-64:12:54.7 |
HIP 68540 |
0.91 |
| 2026-05-30 12:00 |
14:01:50.76 |
-64:12:28.1 |
HIP 68540 |
1.36 |
| 2026-05-31 00:00 |
14:01:44.85 |
-64:12:01.3 |
HIP 68540 |
2.02 |
| 2026-05-31 12:00 |
14:01:38.98 |
-64:11:34.3 |
HIP 68540 |
2.75 |
| 2026-06-01 00:00 |
14:01:33.15 |
-64:11:07.0 |
HIP 68540 |
3.50 |
| 2026-06-01 12:00 |
14:01:27.37 |
-64:10:39.6 |
HIP 68540 |
4.27 |
| 2026-06-02 00:00 |
14:01:21.62 |
-64:10:11.9 |
HIP 68540 |
5.03 |