메타데이터
| 항목 |
값 |
| Designation |
219P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-02-21T05:39:11.623680Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:06Z |
| Obs used |
1145 |
| NEO |
- |
| M1 |
5.900 |
| K1 |
24.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-06-19.0000000 |
| e |
0.35196615 |
| q (au) |
2.365480 |
| a (au) |
3.650242 |
| i (deg) |
11.528879 |
| Ω (om, deg) |
231.031617 |
| ω (w, deg) |
107.482590 |
| M (ma, deg) |
221.750045 |
밝기
산란 + 전체 선형
$$
M_a = (9.086 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.086 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| k |
1.000 |
| δ90 |
10.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
09:22:50.63 |
+05:07:28.6 |
HIP 46068 |
13.61 |
| 2026-09-20 12:00 |
09:23:13.82 |
+05:05:00.5 |
HIP 46068 |
10.49 |
| 2026-09-21 00:00 |
09:23:36.94 |
+05:02:32.4 |
HIP 46068 |
10.67 |
| 2026-09-21 12:00 |
09:23:59.98 |
+05:00:04.1 |
HIP 46068 |
14.00 |
| 2026-09-22 00:00 |
09:24:22.93 |
+04:57:35.8 |
HIP 46130 |
11.72 |
| 2026-09-22 12:00 |
09:24:45.81 |
+04:55:07.3 |
HIP 46130 |
10.53 |
| 2026-09-23 00:00 |
09:25:08.60 |
+04:52:38.7 |
HIP 46130 |
12.69 |
| 2026-09-23 12:00 |
09:25:31.31 |
+04:50:10.1 |
HIP 46130 |
16.95 |
| 2026-09-24 00:00 |
09:25:53.94 |
+04:47:41.4 |
HIP 46130 |
22.11 |
| 2026-09-24 12:00 |
09:26:16.49 |
+04:45:12.5 |
HIP 46130 |
27.67 |
| 2026-09-25 00:00 |
09:26:38.95 |
+04:42:43.6 |
HIP 46270 |
28.24 |
| 2026-09-25 12:00 |
09:27:01.33 |
+04:40:14.7 |
HIP 46270 |
28.35 |
| 2026-09-26 00:00 |
09:27:23.62 |
+04:37:45.6 |
HIP 46270 |
29.72 |
| 2026-09-26 12:00 |
09:27:45.82 |
+04:35:16.5 |
HIP 46270 |
32.19 |
| 2026-09-27 00:00 |
09:28:07.94 |
+04:32:47.4 |
HIP 46270 |
35.51 |
| 2026-09-27 12:00 |
09:28:29.97 |
+04:30:18.1 |
HIP 46542 |
36.23 |
| 2026-09-28 00:00 |
09:28:51.91 |
+04:27:48.9 |
HIP 46542 |
36.66 |
| 2026-09-28 12:00 |
09:29:13.77 |
+04:25:19.6 |
HIP 46542 |
38.05 |
| 2026-09-29 00:00 |
09:29:35.53 |
+04:22:50.2 |
HIP 46542 |
40.29 |
| 2026-09-29 12:00 |
09:29:57.21 |
+04:20:20.8 |
HIP 46542 |
43.24 |
| 2026-09-30 00:00 |
09:30:18.79 |
+04:17:51.4 |
HIP 46871 |
42.26 |
| 2026-09-30 12:00 |
09:30:40.29 |
+04:15:21.9 |
HIP 46871 |
36.57 |
| 2026-10-01 00:00 |
09:31:01.69 |
+04:12:52.5 |
HIP 46871 |
30.99 |
| 2026-10-01 12:00 |
09:31:22.99 |
+04:10:23.0 |
HIP 46871 |
25.58 |
| 2026-10-02 00:00 |
09:31:44.21 |
+04:07:53.5 |
HIP 46871 |
20.43 |
| 2026-10-02 12:00 |
09:32:05.33 |
+04:05:24.0 |
HIP 46871 |
15.80 |
| 2026-10-03 00:00 |
09:32:26.35 |
+04:02:54.5 |
HIP 46871 |
12.26 |
| 2026-10-03 12:00 |
09:32:47.28 |
+04:00:25.0 |
HIP 46871 |
10.88 |
| 2026-10-04 00:00 |
09:33:08.11 |
+03:57:55.5 |
HIP 46871 |
12.39 |
| 2026-10-04 12:00 |
09:33:28.84 |
+03:55:26.0 |
HIP 46871 |
15.96 |
| 2026-10-05 00:00 |
09:33:49.48 |
+03:52:56.6 |
HIP 46871 |
20.52 |
| 2026-10-05 12:00 |
09:34:10.01 |
+03:50:27.2 |
HIP 46984 |
17.94 |
| 2026-10-06 00:00 |
09:34:30.44 |
+03:47:57.8 |
HIP 46984 |
14.51 |
| 2026-10-06 12:00 |
09:34:50.78 |
+03:45:28.5 |
HIP 47058 |
12.34 |
| 2026-10-07 00:00 |
09:35:11.01 |
+03:42:59.2 |
HIP 47058 |
11.88 |
| 2026-10-07 12:00 |
09:35:31.13 |
+03:40:30.0 |
HIP 47058 |
13.90 |
| 2026-10-08 00:00 |
09:35:51.16 |
+03:38:00.9 |
HIP 47058 |
17.54 |
| 2026-10-08 12:00 |
09:36:11.07 |
+03:35:31.8 |
HIP 47058 |
22.00 |
| 2026-10-09 00:00 |
09:36:30.88 |
+03:33:02.8 |
HIP 47058 |
26.85 |
| 2026-10-09 12:00 |
09:36:50.59 |
+03:30:33.9 |
HIP 47282 |
29.57 |
| 2026-10-10 00:00 |
09:37:10.18 |
+03:28:05.1 |
HIP 47282 |
28.77 |
| 2026-10-10 12:00 |
09:37:29.67 |
+03:25:36.3 |
HIP 47282 |
29.02 |
| 2026-10-11 00:00 |
09:37:49.05 |
+03:23:07.7 |
HIP 47411 |
29.86 |