Observation information
- date-obs: 2022-01-16
- time-obs: 15:32:31.998400000
- date-end: 2022-01-18
- time-end: 07:22:30.877700000
- obs_id: A05_208T01_9000004870
- exposure: 61042.8367145
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A05_208T01_9000004870cztM0_level2_bc.evt
| modeM0/AS1A05_208T01_9000004870cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,645,327,040 | 1,273,976,640 |
Size | 5.3 GB
| 1.2 GB
|
Events in quadrant A | 22,042,571 | 8,189,534 |
Events in quadrant B | 42,869,393 | 8,110,415 |
Events in quadrant C | 34,606,077 | 8,063,466 |
Events in quadrant D | 64,728,174 | 7,430,064 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2022 | 0 |
B | 0 | 2022 | 0 |
C | 0 | 2022 | 0 |
D | 0 | 2022 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 383 | 0 |
B | 0 | 383 | 0 |
C | 0 | 383 | 0 |
D | 0 | 383 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 205539 | 0 |
B | 0 | 286488 | 0 |
C | 0 | 244226 | 0 |
D | 0 | 351189 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 99123 | 753 | 0.759662% |
B | 99123 | 6493 | 6.550447% |
C | 99123 | 2193 | 2.212403% |
D | 99123 | 8101 | 8.172674% |
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 | 143399 | 99135 | 75 | 75 | 0.05% | 0.08% |  |
B | 143399 | 99121 | 184 | 184 | 0.13% | 0.19% |  |
C | 143399 | 99123 | 327 | 327 | 0.23% | 0.33% |  |
D | 143399 | 99123 | 2354 | 2354 | 1.64% | 2.37% |  |
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 | 15 | 17 | 1291682 | 1126.27 | 5238 | 5151 | 1142.3 |
A | 10 | 83 | 221956 | 189.8 | 5238 | 5151 | 1142.3 |
A | 13 | 6 | 182920 | 155.63 | 5238 | 5151 | 1142.3 |
B | 5 | 172 | 11470428 | 11320.8 | 5167 | 5055 | 1012.8 |
B | 5 | 31 | 6871990 | 6780.34 | 5167 | 5055 | 1012.8 |
B | 5 | 15 | 1915510 | 1886.36 | 5167 | 5055 | 1012.8 |
C | 0 | 10 | 6736996 | 5826.2 | 5108 | 5076 | 1155.5 |
C | 15 | 214 | 4025195 | 3479.25 | 5108 | 5076 | 1155.5 |
C | 14 | 254 | 1223580 | 1054.56 | 5108 | 5076 | 1155.5 |
D | 8 | 195 | 17880933 | 14902.7 | 4993 | 4837 | 1199.5 |
D | 7 | 223 | 8515058 | 7094.69 | 4993 | 4837 | 1199.5 |
D | 2 | 250 | 4318850 | 3596.45 | 4993 | 4837 | 1199.5 |
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 |  |