Observation information
- date-obs: 2023-08-11
- time-obs: 16:13:28.534600000
- date-end: 2023-08-11
- time-end: 21:39:14.523800000
- obs_id: A12_102T01_9000005812
- exposure: 14255.6201694
- sourceid: 1ES 1927+654
- observer: savithri
- ra_pnt: 291.8314
- dec_pnt: 65.56506
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_102T01_9000005812_42555cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005812_42555cztM0_level2_quad_clean.evt
|
Size (bytes) | 958,893,120 | 234,446,400 |
Size | 914.5 MB
| 223.6 MB
|
Events in quadrant A | 7,487,839 | 1,559,507 |
Events in quadrant B | 6,359,647 | 1,590,905 |
Events in quadrant C | 6,662,449 | 1,535,774 |
Events in quadrant D | 13,840,513 | 1,390,931 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31769 | 4 |
B | 0 | 30077 | 4 |
C | 0 | 29960 | 4 |
D | 0 | 51946 | 9 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 47 | 0 |
B | 0 | 48 | 0 |
C | 0 | 48 | 0 |
D | 0 | 48 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 302 | 0 |
B | 0 | 302 | 0 |
C | 0 | 302 | 0 |
D | 0 | 302 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 14794 | 35 | 0.236582% |
B | 14794 | 25 | 0.168987% |
C | 14794 | 12 | 0.081114% |
D | 14792 | 503 | 3.400487% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 18969 | 14797 | 11 | 11 | 0.06% | 0.07% |  |
B | 18969 | 14797 | 11 | 11 | 0.06% | 0.07% |  |
C | 18969 | 14797 | 3 | 3 | 0.02% | 0.02% |  |
D | 18969 | 14796 | 429 | 429 | 2.26% | 2.90% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 1347433 | 4255.96 | 1556 | 1519 | 316.2 |
A | 2 | 79 | 57862 | 178.16 | 1556 | 1519 | 316.2 |
A | 13 | 248 | 42423 | 129.34 | 1556 | 1519 | 316.2 |
B | 0 | 245 | 110906 | 367.58 | 1544 | 1501 | 297.6 |
B | 0 | 186 | 76223 | 251.05 | 1544 | 1501 | 297.6 |
B | 5 | 172 | 72209 | 237.57 | 1544 | 1501 | 297.6 |
C | 15 | 214 | 604793 | 1718.51 | 1519 | 1527 | 351.0 |
C | 14 | 254 | 68637 | 191.18 | 1519 | 1527 | 351.0 |
C | 12 | 249 | 39841 | 109.14 | 1519 | 1527 | 351.0 |
D | 2 | 16 | 6558625 | 18152.18 | 1497 | 1455 | 361.2 |
D | 13 | 249 | 477238 | 1317.11 | 1497 | 1455 | 361.2 |
D | 5 | 222 | 224731 | 618.09 | 1497 | 1455 | 361.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |