Observation information
- date-obs: 2023-01-04
- time-obs: 20:11:56.683800000
- date-end: 2023-01-05
- time-end: 00:53:35.681700000
- obs_id: A12_102T01_9000005466
- exposure: 6147.27601695
- 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_9000005466_39317cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005466_39317cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,268,795,520 | 195,995,520 |
Size | 1.2 GB
| 186.9 MB
|
Events in quadrant A | 6,814,193 | 1,470,249 |
Events in quadrant B | 6,349,394 | 1,489,044 |
Events in quadrant C | 6,506,597 | 1,438,350 |
Events in quadrant D | 26,264,474 | 616,648 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 37 | 0 |
B | 0 | 37 | 0 |
C | 0 | 37 | 0 |
D | 0 | 37 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28649 | 2 |
B | 0 | 28505 | 2 |
C | 0 | 28036 | 2 |
D | 0 | 87235 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 270 | 0 |
B | 0 | 270 | 0 |
C | 0 | 270 | 0 |
D | 0 | 270 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 13321 | 67 | 0.502965% |
B | 13321 | 174 | 1.306208% |
C | 13321 | 44 | 0.330306% |
D | 13321 | 7933 | 59.552586% |
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 | 16667 | 13323 | 41 | 41 | 0.25% | 0.31% |  |
B | 16667 | 13323 | 137 | 137 | 0.82% | 1.03% |  |
C | 16667 | 13323 | 36 | 36 | 0.22% | 0.27% |  |
D | 16666 | 13321 | 6640 | 6640 | 39.84% | 49.85% |  |
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 | 805415 | 2766.47 | 1442 | 1414 | 290.6 |
A | 13 | 248 | 321749 | 1102.23 | 1442 | 1414 | 290.6 |
A | 15 | 222 | 86065 | 291.27 | 1442 | 1414 | 290.6 |
B | 5 | 172 | 623768 | 2282.35 | 1432 | 1391 | 272.7 |
B | 5 | 184 | 54310 | 194.06 | 1432 | 1391 | 272.7 |
B | 5 | 255 | 36742 | 129.64 | 1432 | 1391 | 272.7 |
C | 15 | 214 | 583794 | 1789.65 | 1404 | 1412 | 325.4 |
C | 9 | 187 | 222729 | 680.1 | 1404 | 1412 | 325.4 |
C | 14 | 254 | 186633 | 569.18 | 1404 | 1412 | 325.4 |
D | 12 | 235 | 19961220 | 82798.37 | 989 | 960 | 241.1 |
D | 12 | 227 | 1120890 | 4645.65 | 989 | 960 | 241.1 |
D | 13 | 249 | 823266 | 3411.06 | 989 | 960 | 241.1 |
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 |  |