| Parameter |
Value |
| Designation |
230P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-11-18T01:34:10.223040Z |
| Orbit solution date (soln_date, UTC) |
2025-11-13T12:12:40Z |
| Obs used |
1528 |
| NEO |
- |
| M1 |
15.600 |
| K1 |
5.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-07-24T08:25:25.536000Z |
| Discovery magnitude (MPC) |
21.80 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2015-07-08.0000000 |
| e |
0.56311389 |
| q (au) |
1.485293 |
| a (au) |
3.399726 |
| i (deg) |
14.653033 |
| Ω (om, deg) |
112.396470 |
| ω (w, deg) |
308.912952 |
| M (ma, deg) |
339.077991 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.855 + 2.038\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.855 |
| n |
2.038 |
| gf |
0.871 |
| gb |
-0.500 |
| k |
0.937 |
| δ90 |
3.114 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
17:38:22.89 |
-14:58:06.5 |
HIP 86263 |
28.24 |
| 2026-06-01 12:00 |
17:38:03.10 |
-14:58:12.4 |
HIP 86263 |
26.56 |
| 2026-06-02 00:00 |
17:37:43.22 |
-14:58:18.7 |
HIP 86263 |
25.67 |
| 2026-06-02 12:00 |
17:37:23.24 |
-14:58:25.4 |
HIP 86263 |
25.64 |
| 2026-06-03 00:00 |
17:37:03.18 |
-14:58:32.5 |
HIP 86263 |
26.52 |
| 2026-06-03 12:00 |
17:36:43.03 |
-14:58:39.9 |
HIP 86099 |
24.63 |
| 2026-06-04 00:00 |
17:36:22.79 |
-14:58:47.8 |
HIP 86099 |
22.27 |
| 2026-06-04 12:00 |
17:36:02.48 |
-14:58:56.1 |
HIP 86099 |
20.81 |
| 2026-06-05 00:00 |
17:35:42.09 |
-14:59:04.7 |
HIP 86099 |
20.46 |
| 2026-06-05 12:00 |
17:35:21.63 |
-14:59:13.7 |
HIP 86099 |
21.30 |
| 2026-06-06 00:00 |
17:35:01.10 |
-14:59:23.2 |
HIP 86099 |
23.19 |
| 2026-06-06 12:00 |
17:34:40.50 |
-14:59:33.0 |
HIP 86099 |
25.93 |
| 2026-06-07 00:00 |
17:34:19.84 |
-14:59:43.2 |
HIP 85866 |
25.18 |
| 2026-06-07 12:00 |
17:33:59.11 |
-14:59:53.9 |
HIP 85866 |
21.04 |
| 2026-06-08 00:00 |
17:33:38.33 |
-15:00:04.9 |
HIP 85866 |
17.37 |
| 2026-06-08 12:00 |
17:33:17.49 |
-15:00:16.4 |
HIP 85866 |
14.53 |
| 2026-06-09 00:00 |
17:32:56.59 |
-15:00:28.2 |
HIP 85866 |
13.10 |
| 2026-06-09 12:00 |
17:32:35.65 |
-15:00:40.5 |
HIP 85866 |
13.53 |
| 2026-06-10 00:00 |
17:32:14.66 |
-15:00:53.1 |
HIP 85866 |
15.70 |
| 2026-06-10 12:00 |
17:31:53.63 |
-15:01:06.2 |
HIP 85866 |
19.02 |
| 2026-06-11 00:00 |
17:31:32.56 |
-15:01:19.7 |
HIP 85679 |
20.91 |
| 2026-06-11 12:00 |
17:31:11.46 |
-15:01:33.6 |
HIP 85679 |
17.93 |
| 2026-06-12 00:00 |
17:30:50.32 |
-15:01:47.9 |
HIP 85679 |
16.06 |
| 2026-06-12 12:00 |
17:30:29.15 |
-15:02:02.6 |
HIP 85679 |
15.71 |
| 2026-06-13 00:00 |
17:30:07.96 |
-15:02:17.8 |
HIP 85679 |
16.98 |
| 2026-06-13 12:00 |
17:29:46.74 |
-15:02:33.3 |
HIP 85679 |
19.56 |
| 2026-06-14 00:00 |
17:29:25.51 |
-15:02:49.3 |
HIP 85679 |
23.03 |
| 2026-06-14 12:00 |
17:29:04.26 |
-15:03:05.7 |
HIP 85679 |
27.04 |
| 2026-06-15 00:00 |
17:28:42.99 |
-15:03:22.6 |
HIP 85679 |
31.39 |
| 2026-06-15 12:00 |
17:28:21.72 |
-15:03:39.8 |
HIP 85336 |
32.05 |
| 2026-06-16 00:00 |
17:28:00.45 |
-15:03:57.5 |
HIP 85336 |
27.27 |
| 2026-06-16 12:00 |
17:27:39.17 |
-15:04:15.6 |
HIP 85336 |
22.65 |
| 2026-06-17 00:00 |
17:27:17.90 |
-15:04:34.2 |
HIP 85336 |
18.30 |
| 2026-06-17 12:00 |
17:26:56.63 |
-15:04:53.1 |
HIP 85336 |
14.48 |
| 2026-06-18 00:00 |
17:26:35.37 |
-15:05:12.5 |
HIP 85336 |
11.72 |
| 2026-06-18 12:00 |
17:26:14.12 |
-15:05:32.4 |
HIP 85336 |
10.84 |
| 2026-06-19 00:00 |
17:25:52.89 |
-15:05:52.6 |
HIP 85288 |
10.16 |
| 2026-06-19 12:00 |
17:25:31.68 |
-15:06:13.3 |
HIP 85288 |
9.65 |
| 2026-06-20 00:00 |
17:25:10.49 |
-15:06:34.4 |
HIP 85288 |
11.64 |
| 2026-06-20 12:00 |
17:24:49.33 |
-15:06:55.9 |
HIP 85232 |
14.40 |
| 2026-06-21 00:00 |
17:24:28.19 |
-15:07:17.9 |
HIP 85232 |
15.68 |
| 2026-06-21 12:00 |
17:24:07.09 |
-15:07:40.3 |
HIP 85232 |
18.33 |
| 2026-06-22 00:00 |
17:23:46.03 |
-15:08:03.1 |
HIP 85026 |
18.46 |