메타데이터
| 항목 |
값 |
| Designation |
160P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2012-09-18T12:33:16.488000Z |
| Orbit solution date (soln_date, UTC) |
2022-05-19T21:13:49Z |
| Obs used |
973 |
| NEO |
- |
| M1 |
6.700 |
| K1 |
31.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-09-19.0000000 |
| e |
0.47909715 |
| q (au) |
2.066541 |
| a (au) |
3.967229 |
| i (deg) |
17.276215 |
| Ω (om, deg) |
337.002091 |
| ω (w, deg) |
18.198295 |
| M (ma, deg) |
0.059483 |
밝기
산란 + 전체 선형
$$
M_a = (10.016 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.016 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.994 |
| k |
1.000 |
| δ90 |
1.000 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2019-07-15 |
2019-08-02 |
+40.9969 |
-10.922 |
| 2019-08-02 |
2020-10-25 |
-18.3580 |
+8.627 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
15:25:31.32 |
-42:17:53.5 |
HIP 75575 |
10.85 |
| 2026-06-01 12:00 |
15:24:58.95 |
-42:16:00.0 |
HIP 75333 |
16.13 |
| 2026-06-02 00:00 |
15:24:26.74 |
-42:14:03.5 |
HIP 75333 |
11.10 |
| 2026-06-02 12:00 |
15:23:54.69 |
-42:12:04.2 |
HIP 75333 |
8.09 |
| 2026-06-03 00:00 |
15:23:22.81 |
-42:10:02.2 |
HIP 75333 |
9.30 |
| 2026-06-03 12:00 |
15:22:51.12 |
-42:07:57.4 |
HIP 75333 |
13.64 |
| 2026-06-04 00:00 |
15:22:19.62 |
-42:05:50.0 |
HIP 75333 |
19.06 |
| 2026-06-04 12:00 |
15:21:48.31 |
-42:03:39.8 |
HIP 75333 |
24.86 |
| 2026-06-05 00:00 |
15:21:17.21 |
-42:01:27.1 |
HIP 75072 |
26.38 |
| 2026-06-05 12:00 |
15:20:46.32 |
-41:59:11.8 |
HIP 75072 |
27.24 |
| 2026-06-06 00:00 |
15:20:15.65 |
-41:56:53.9 |
HIP 75072 |
29.43 |
| 2026-06-06 12:00 |
15:19:45.21 |
-41:54:33.5 |
HIP 74807 |
27.50 |
| 2026-06-07 00:00 |
15:19:15.01 |
-41:52:10.6 |
HIP 74807 |
22.14 |
| 2026-06-07 12:00 |
15:18:45.05 |
-41:49:45.3 |
HIP 74807 |
17.33 |
| 2026-06-08 00:00 |
15:18:15.35 |
-41:47:17.7 |
HIP 74807 |
13.62 |
| 2026-06-08 12:00 |
15:17:45.90 |
-41:44:47.7 |
HIP 74807 |
12.05 |
| 2026-06-09 00:00 |
15:17:16.72 |
-41:42:15.3 |
HIP 74807 |
13.37 |
| 2026-06-09 12:00 |
15:16:47.81 |
-41:39:40.8 |
HIP 74707 |
13.09 |
| 2026-06-10 00:00 |
15:16:19.19 |
-41:37:04.0 |
HIP 74707 |
8.11 |
| 2026-06-10 12:00 |
15:15:50.85 |
-41:34:25.1 |
HIP 74707 |
5.53 |
| 2026-06-11 00:00 |
15:15:22.81 |
-41:31:44.0 |
HIP 74707 |
8.04 |
| 2026-06-11 12:00 |
15:14:55.08 |
-41:29:00.9 |
HIP 74549 |
10.58 |
| 2026-06-12 00:00 |
15:14:27.65 |
-41:26:15.8 |
HIP 74550 |
5.47 |
| 2026-06-12 12:00 |
15:14:00.54 |
-41:23:28.7 |
HIP 74550 |
3.99 |
| 2026-06-13 00:00 |
15:13:33.75 |
-41:20:39.7 |
HIP 74550 |
8.30 |
| 2026-06-13 12:00 |
15:13:07.29 |
-41:17:48.8 |
HIP 74519 |
13.25 |
| 2026-06-14 00:00 |
15:12:41.17 |
-41:14:56.1 |
HIP 74519 |
18.30 |
| 2026-06-14 12:00 |
15:12:15.40 |
-41:12:01.7 |
HIP 74565 |
22.74 |
| 2026-06-15 00:00 |
15:11:49.97 |
-41:09:05.5 |
HIP 74220 |
20.65 |
| 2026-06-15 12:00 |
15:11:24.90 |
-41:06:07.8 |
HIP 74230 |
15.15 |
| 2026-06-16 00:00 |
15:11:00.19 |
-41:03:08.4 |
HIP 74230 |
9.75 |
| 2026-06-16 12:00 |
15:10:35.85 |
-41:00:07.5 |
HIP 74230 |
4.73 |
| 2026-06-17 00:00 |
15:10:11.88 |
-40:57:05.1 |
HIP 74230 |
3.19 |
| 2026-06-17 12:00 |
15:09:48.28 |
-40:54:01.3 |
HIP 74230 |
7.56 |
| 2026-06-18 00:00 |
15:09:25.07 |
-40:50:56.1 |
HIP 74230 |
12.72 |
| 2026-06-18 12:00 |
15:09:02.25 |
-40:47:49.6 |
HIP 74066 |
15.94 |
| 2026-06-19 00:00 |
15:08:39.82 |
-40:44:41.8 |
HIP 74066 |
11.00 |
| 2026-06-19 12:00 |
15:08:17.79 |
-40:41:32.9 |
HIP 74066 |
6.60 |
| 2026-06-20 00:00 |
15:07:56.16 |
-40:38:22.8 |
HIP 74066 |
4.52 |
| 2026-06-20 12:00 |
15:07:34.94 |
-40:35:11.6 |
HIP 74066 |
7.07 |
| 2026-06-21 00:00 |
15:07:14.12 |
-40:31:59.3 |
HIP 74066 |
11.43 |
| 2026-06-21 12:00 |
15:06:53.72 |
-40:28:46.1 |
HIP 74066 |
16.17 |
| 2026-06-22 00:00 |
15:06:33.73 |
-40:25:31.9 |
HIP 73811 |
18.09 |