ASTROSAT CZTI

Data Quality Report

Orbit 32722

Creation date: 2024-06-27T20:41:14.255051
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_123T04_9000004726_32722cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32722cztM0_level2_quad_clean.evt
Size (bytes)173,427,84047,116,800
Size165.4 MB 44.9 MB
Events in quadrant A1,113,549317,125
Events in quadrant B1,182,221310,251
Events in quadrant C1,315,703315,149
Events in quadrant D1,465,477301,499

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06004856
B064591221
C06624902
D073421309

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109
B01110
C01010
D087

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06210
B06210
C06210
D0628

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A255400.000000%
B251940.158793%
C2556170.665102%
D2526512.019002%

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 2981 2645 0 0 0.00% 0.00%
B 2982 2612 3 3 0.10% 0.11%
C 2983 2654 17 17 0.57% 0.64%
D 2976 2600 50 50 1.68% 1.92%

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 15 249 12510 208.82 281 275 58.6
A 15 237 8700 143.79 281 275 58.6
A 13 254 4944 79.69 281 275 58.6
B 8 128 16502 296.04 279 272 54.8
B 3 32 13556 242.3 279 272 54.8
B 15 36 11461 204.09 279 272 54.8
C 9 236 156330 2413.17 271 273 64.7
C 15 208 51897 798.28 271 273 64.7
C 0 10 21573 329.37 271 273 64.7
D 2 250 163344 2492.68 264 258 65.4
D 7 80 80029 1219.26 264 258 65.4
D 12 218 49580 753.86 264 258 65.4

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