| Parameter |
Value |
| Designation |
214P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2002-03-01T01:06:46.031040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:27:56Z |
| Obs used |
131 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
22.750 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2003-05-31.0000000 |
| e |
0.48955169 |
| q (au) |
1.839837 |
| a (au) |
3.604356 |
| i (deg) |
15.226039 |
| Ω (om, deg) |
348.307428 |
| ω (w, deg) |
190.158967 |
| M (ma, deg) |
65.672462 |
Magnitude
Scatter + Global Linear
$$
M_a = (13.817 + 5.612\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
13.817 |
| n |
5.612 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| 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 |
00:27:48.64 |
+06:29:06.7 |
HIP 2039 |
28.93 |
| 2026-05-12 12:00 |
00:28:06.55 |
+06:31:37.7 |
HIP 2356 |
30.23 |
| 2026-05-13 00:00 |
00:28:24.40 |
+06:34:08.3 |
HIP 2356 |
26.29 |
| 2026-05-13 12:00 |
00:28:42.17 |
+06:36:38.7 |
HIP 2356 |
22.84 |
| 2026-05-14 00:00 |
00:28:59.87 |
+06:39:08.7 |
HIP 2356 |
20.10 |
| 2026-05-14 12:00 |
00:29:17.51 |
+06:41:38.3 |
HIP 2356 |
18.38 |
| 2026-05-15 00:00 |
00:29:35.07 |
+06:44:07.7 |
HIP 2356 |
17.96 |
| 2026-05-15 12:00 |
00:29:52.55 |
+06:46:36.6 |
HIP 2356 |
18.91 |
| 2026-05-16 00:00 |
00:30:09.97 |
+06:49:05.2 |
HIP 2356 |
21.04 |
| 2026-05-16 12:00 |
00:30:27.31 |
+06:51:33.5 |
HIP 2373 |
19.33 |
| 2026-05-17 00:00 |
00:30:44.57 |
+06:54:01.4 |
HIP 2373 |
17.97 |
| 2026-05-17 12:00 |
00:31:01.76 |
+06:56:28.9 |
HIP 2373 |
17.92 |
| 2026-05-18 00:00 |
00:31:18.87 |
+06:58:56.1 |
HIP 2548 |
16.18 |
| 2026-05-18 12:00 |
00:31:35.90 |
+07:01:22.9 |
HIP 2548 |
12.55 |
| 2026-05-19 00:00 |
00:31:52.86 |
+07:03:49.3 |
HIP 2548 |
10.05 |
| 2026-05-19 12:00 |
00:32:09.73 |
+07:06:15.4 |
HIP 2548 |
9.58 |
| 2026-05-20 00:00 |
00:32:26.53 |
+07:08:41.0 |
HIP 2548 |
11.38 |
| 2026-05-20 12:00 |
00:32:43.25 |
+07:11:06.3 |
HIP 2548 |
14.60 |
| 2026-05-21 00:00 |
00:32:59.88 |
+07:13:31.1 |
HIP 2548 |
18.51 |
| 2026-05-21 12:00 |
00:33:16.43 |
+07:15:55.6 |
HIP 2609 |
19.32 |
| 2026-05-22 00:00 |
00:33:32.90 |
+07:18:19.7 |
HIP 2609 |
17.88 |
| 2026-05-22 12:00 |
00:33:49.29 |
+07:20:43.3 |
HIP 2609 |
17.64 |
| 2026-05-23 00:00 |
00:34:05.59 |
+07:23:06.6 |
HIP 2609 |
18.61 |
| 2026-05-23 12:00 |
00:34:21.81 |
+07:25:29.4 |
HIP 2609 |
20.62 |
| 2026-05-24 00:00 |
00:34:37.94 |
+07:27:51.9 |
HIP 2751 |
17.18 |
| 2026-05-24 12:00 |
00:34:53.98 |
+07:30:13.9 |
HIP 2751 |
13.59 |
| 2026-05-25 00:00 |
00:35:09.94 |
+07:32:35.5 |
HIP 2751 |
10.82 |
| 2026-05-25 12:00 |
00:35:25.82 |
+07:34:56.6 |
HIP 2833 |
7.95 |
| 2026-05-26 00:00 |
00:35:41.60 |
+07:37:17.4 |
HIP 2833 |
3.94 |
| 2026-05-26 12:00 |
00:35:57.29 |
+07:39:37.7 |
HIP 2833 |
3.08 |
| 2026-05-27 00:00 |
00:36:12.90 |
+07:41:57.6 |
HIP 2833 |
6.66 |
| 2026-05-27 12:00 |
00:36:28.42 |
+07:44:17.0 |
HIP 2833 |
10.93 |
| 2026-05-28 00:00 |
00:36:43.84 |
+07:46:36.0 |
HIP 2833 |
15.31 |
| 2026-05-28 12:00 |
00:36:59.17 |
+07:48:54.6 |
HIP 2833 |
19.70 |
| 2026-05-29 00:00 |
00:37:14.42 |
+07:51:12.7 |
HIP 2833 |
24.09 |
| 2026-05-29 12:00 |
00:37:29.57 |
+07:53:30.3 |
HIP 3069 |
21.81 |
| 2026-05-30 00:00 |
00:37:44.62 |
+07:55:47.5 |
HIP 3069 |
18.06 |
| 2026-05-30 12:00 |
00:37:59.58 |
+07:58:04.3 |
HIP 3069 |
14.68 |
| 2026-05-31 00:00 |
00:38:14.45 |
+08:00:20.6 |
HIP 3069 |
11.96 |
| 2026-05-31 12:00 |
00:38:29.22 |
+08:02:36.4 |
HIP 3069 |
10.41 |
| 2026-06-01 00:00 |
00:38:43.90 |
+08:04:51.8 |
HIP 3069 |
10.51 |
| 2026-06-01 12:00 |
00:38:58.47 |
+08:07:06.6 |
HIP 3069 |
12.21 |
| 2026-06-02 00:00 |
00:39:12.95 |
+08:09:21.1 |
HIP 3069 |
14.95 |