| Parameter |
Value |
| Designation |
C/2003 V1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-03-11T04:18:31.763520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:35Z |
| Obs used |
530 |
| NEO |
- |
| M1 |
9.900 |
| K1 |
8.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2004-01-14.0000000 |
| e |
0.99703579 |
| q (au) |
1.783148 |
| a (au) |
601.560248 |
| i (deg) |
28.675166 |
| Ω (om, deg) |
25.832809 |
| ω (w, deg) |
8.631585 |
| M (ma, deg) |
0.020630 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.839 + 2.858\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.839 |
| n |
2.858 |
| gf |
1.000 |
| gb |
-0.632 |
| 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) |
| 2026-06-01 00:00 |
12:55:15.43 |
+01:27:27.6 |
HIP 63052 |
2.27 |
| 2026-06-01 12:00 |
12:55:14.08 |
+01:27:30.8 |
HIP 63052 |
2.01 |
| 2026-06-02 00:00 |
12:55:12.75 |
+01:27:33.9 |
HIP 63052 |
1.78 |
| 2026-06-02 12:00 |
12:55:11.43 |
+01:27:36.9 |
HIP 63052 |
1.60 |
| 2026-06-03 00:00 |
12:55:10.13 |
+01:27:39.7 |
HIP 63052 |
1.47 |
| 2026-06-03 12:00 |
12:55:08.85 |
+01:27:42.4 |
HIP 63052 |
1.41 |
| 2026-06-04 00:00 |
12:55:07.59 |
+01:27:44.9 |
HIP 63052 |
1.42 |
| 2026-06-04 12:00 |
12:55:06.35 |
+01:27:47.4 |
HIP 63052 |
1.51 |
| 2026-06-05 00:00 |
12:55:05.12 |
+01:27:49.6 |
HIP 63052 |
1.64 |
| 2026-06-05 12:00 |
12:55:03.92 |
+01:27:51.8 |
HIP 63052 |
1.82 |
| 2026-06-06 00:00 |
12:55:02.73 |
+01:27:53.8 |
HIP 63052 |
2.03 |
| 2026-06-06 12:00 |
12:55:01.56 |
+01:27:55.7 |
HIP 63052 |
2.25 |
| 2026-06-07 00:00 |
12:55:00.41 |
+01:27:57.4 |
HIP 63052 |
2.49 |
| 2026-06-07 12:00 |
12:54:59.28 |
+01:27:59.0 |
HIP 63017 |
2.55 |
| 2026-06-08 00:00 |
12:54:58.17 |
+01:28:00.5 |
HIP 63017 |
2.37 |
| 2026-06-08 12:00 |
12:54:57.07 |
+01:28:01.8 |
HIP 63017 |
2.21 |
| 2026-06-09 00:00 |
12:54:56.00 |
+01:28:03.0 |
HIP 63017 |
2.07 |
| 2026-06-09 12:00 |
12:54:54.94 |
+01:28:04.1 |
HIP 63017 |
1.97 |
| 2026-06-10 00:00 |
12:54:53.91 |
+01:28:05.0 |
HIP 63017 |
1.89 |
| 2026-06-10 12:00 |
12:54:52.89 |
+01:28:05.7 |
HIP 63017 |
1.85 |
| 2026-06-11 00:00 |
12:54:51.89 |
+01:28:06.4 |
HIP 63017 |
1.84 |
| 2026-06-11 12:00 |
12:54:50.92 |
+01:28:06.9 |
HIP 63017 |
1.85 |
| 2026-06-12 00:00 |
12:54:49.96 |
+01:28:07.3 |
HIP 63017 |
1.90 |
| 2026-06-12 12:00 |
12:54:49.02 |
+01:28:07.5 |
HIP 63017 |
1.97 |
| 2026-06-13 00:00 |
12:54:48.10 |
+01:28:07.6 |
HIP 63017 |
2.06 |
| 2026-06-13 12:00 |
12:54:47.20 |
+01:28:07.5 |
HIP 63017 |
2.17 |
| 2026-06-14 00:00 |
12:54:46.32 |
+01:28:07.3 |
HIP 63017 |
2.29 |
| 2026-06-14 12:00 |
12:54:45.47 |
+01:28:07.0 |
HIP 63017 |
2.42 |
| 2026-06-15 00:00 |
12:54:44.63 |
+01:28:06.5 |
HIP 63017 |
2.55 |
| 2026-06-15 12:00 |
12:54:43.81 |
+01:28:05.9 |
HIP 63017 |
2.69 |
| 2026-06-16 00:00 |
12:54:43.01 |
+01:28:05.2 |
HIP 63017 |
2.84 |
| 2026-06-16 12:00 |
12:54:42.23 |
+01:28:04.3 |
HIP 63017 |
2.98 |
| 2026-06-17 00:00 |
12:54:41.47 |
+01:28:03.3 |
HIP 63017 |
3.12 |
| 2026-06-17 12:00 |
12:54:40.74 |
+01:28:02.1 |
HIP 63017 |
3.27 |
| 2026-06-18 00:00 |
12:54:40.02 |
+01:28:00.8 |
HIP 63017 |
3.41 |
| 2026-06-18 12:00 |
12:54:39.32 |
+01:27:59.4 |
HIP 63017 |
3.55 |
| 2026-06-19 00:00 |
12:54:38.64 |
+01:27:57.8 |
HIP 63017 |
3.68 |
| 2026-06-19 12:00 |
12:54:37.99 |
+01:27:56.1 |
HIP 63017 |
3.82 |
| 2026-06-20 00:00 |
12:54:37.35 |
+01:27:54.2 |
HIP 63017 |
3.95 |
| 2026-06-20 12:00 |
12:54:36.74 |
+01:27:52.2 |
HIP 63017 |
4.07 |
| 2026-06-21 00:00 |
12:54:36.14 |
+01:27:50.1 |
HIP 63017 |
4.20 |
| 2026-06-21 12:00 |
12:54:35.57 |
+01:27:47.9 |
HIP 63017 |
4.32 |
| 2026-06-22 00:00 |
12:54:35.01 |
+01:27:45.5 |
HIP 63017 |
4.43 |