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EPS SCI 9 · Dis 1H

Solar System and Planets

Fall 2026Mao, C.4 units

Seats, time, final and grades

Seats

Closed.

26 of 26 enrolled.

Read 8 minutes ago. This is a recent reading, not a live seat count.

Meets

W 10:00am-10:50am

This discussion only. You also attend Lec 1.

Final

Tue 8 Dec, 3:00pm to 6:00pm

One exam for the whole class, Los Angeles time.

Read 14 hours ago.

Grades

3.74

Predicted GPA

Historical records across all instructors; 2,268 letter grades

dibs has seen this section open 23 times since 17 August. The last time was 7 October. 10 of those were readings where the capacity figure moved and the enrolled count did not, so dibs could not tell whether a seat existed and did not send an alert.

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A watch slot

25 per account. A lecture watch also covers its discussions. Paused watches still use a slot.

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Before you can enroll

From the registrar

Seats are held for entering students who enroll through New Student Orientation sessions beginning July 2, 2026. New student restrictions will be lifted on September 15, 2026 at 8 a.m.

The new-student hold ended on 15 September.

When it meets

This discussion and its linked lecture.

Mon
Tue
Wed
Thu
Fri
10am
11am
12pm
1pm
2pm
3pm

Lec 1

2pm-3:15pm

Dis 1H

10am-10:50am

Lec 1

2pm-3:15pm

Scroll sideways for the whole week. All meeting times are listed below.

  • Dis 1H

    W 10:00am-10:50am

  • Lec 1 (required lecture)

    MW 2:00pm-3:15pm

Geology Building 4653

Grades

3.74

Predicted GPA

Historical records across all instructors; 2,268 letter grades

Of the 8 people in the grade record for EPS SCI 9, the 2 with the most grades: YOUNG, EDWARD DONALD at 3.87 over 994 grades and JEWITT, DAVID CLIFFORD at 3.59 over 408 grades.

A range
83%
P/NP
4%
D/F/W
1.6%

Full grade history for EPS SCI 9

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

No assignment details are available in this review summary. Based on 140 reviews; source checked about 2 months ago. Missing details do not mean there are no papers or exams. Check the current syllabus.

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 27721F
  • 14922S
  • 20622F
  • 42323W
  • 26323F
  • 35824F
  • 17425S
  • 18125F
Enrollment by term: 21F 277, 22S 149, 22F 206, 23W 423, 23F 263, 24F 358, 25S 174, 25F 181

Peak 423 · most recent 25F at 181

Seats over time

Filled by 3 over 2 months

23 times reopened
26 of 26 · no seats left
17 Aug 16:4217 Sep 00:2117 Oct 08:00
Checked 168 of the 169 hours with hourly history, 99%. No reading was recorded in 1 hour. dibs had no hourly record before 10 Oct, which is the other 1288 of 1457 plotted.26 of 26 enrolled at the newest reading, 8 minutes ago, and no seats left. Seats from 17 Aug 16:42 to 17 Oct 08:00, 23 to 26. Checks are not continuous monitoring. Changes between checks may be missed.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 8 minutes ago.

Show the readings (63)
Recorded Enrolled Capacity Status Waitlist Hours read
17 Oct 08:00 26 26 closed - 168 of 249, 80 no hourly record
7 Oct 00:40 26 26 closed - no hourly record
7 Oct 00:10 25 26 open - no hourly record
6 Oct 23:12 26 26 closed - no hourly record
6 Oct 23:00 25 26 open - no hourly record
6 Oct 21:10 24 26 open - no hourly record
6 Oct 20:40 25 26 open - no hourly record
6 Oct 19:42 24 26 open - no hourly record
6 Oct 18:40 26 26 closed - no hourly record
6 Oct 17:10 24 26 open - no hourly record
6 Oct 16:12 26 26 closed - no hourly record
6 Oct 15:10 24 26 open - no hourly record
6 Oct 14:10 25 26 open - no hourly record
6 Oct 11:30 24 26 open - no hourly record
6 Oct 10:40 25 26 open - no hourly record
6 Oct 10:10 24 26 open - no hourly record
6 Oct 09:22 25 26 open - no hourly record
6 Oct 01:20 24 26 open - no hourly record
27 Sep 01:10 26 26 closed - no hourly record
26 Sep 18:50 25 26 open - no hourly record
26 Sep 18:12 26 26 closed - no hourly record
26 Sep 01:40 25 26 open - no hourly record
10 Sep 01:20 26 26 closed - no hourly record
3 Sep 22:20 25 26 open - no hourly record
3 Sep 21:40 25 25 closed - no hourly record
3 Sep 11:27 25 26 open - no hourly record
26 Aug 00:40 25 25 closed - no hourly record
25 Aug 23:40 24 25 open - no hourly record
25 Aug 20:40 25 25 closed - no hourly record
25 Aug 19:55 24 25 open - no hourly record
25 Aug 19:40 25 25 closed - no hourly record
25 Aug 18:40 24 25 open - no hourly record
25 Aug 17:55 25 25 closed - no hourly record
25 Aug 16:55 24 25 open - no hourly record
25 Aug 15:55 25 25 closed - no hourly record
24 Aug 19:55 24 25 open - no hourly record
24 Aug 17:55 24 24 closed - no hourly record
24 Aug 15:55 24 25 open - no hourly record
24 Aug 14:55 24 24 closed - no hourly record
24 Aug 12:55 24 25 open - no hourly record
24 Aug 11:55 24 24 closed - no hourly record
24 Aug 10:55 24 25 open - no hourly record
22 Aug 00:55 24 24 closed - no hourly record
21 Aug 23:55 23 24 open - no hourly record
21 Aug 22:55 24 24 closed - no hourly record
21 Aug 21:55 23 24 open - no hourly record
21 Aug 20:55 24 24 closed - no hourly record
21 Aug 19:55 23 24 open - no hourly record
21 Aug 18:55 24 24 closed - no hourly record
21 Aug 01:55 23 24 open - no hourly record
20 Aug 23:55 22 24 open - no hourly record
20 Aug 21:55 23 24 open - no hourly record
20 Aug 20:55 22 24 open - no hourly record
20 Aug 17:55 23 24 open - no hourly record
20 Aug 00:55 22 24 open - no hourly record
19 Aug 21:55 23 24 open - no hourly record
19 Aug 19:55 23 23 closed - no hourly record
19 Aug 18:55 23 24 open - no hourly record
19 Aug 15:55 23 23 closed - no hourly record
19 Aug 14:55 23 24 open - no hourly record
19 Aug 13:55 23 23 closed - no hourly record
19 Aug 12:55 23 24 open - no hourly record
17 Aug 16:42 23 23 closed - -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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Dis 1H shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".

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