ASTROSAT CZTI

Data Quality Report

Orbit 30852

Creation date: 2024-06-27T20:20:21.379246
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_071T40_9000004458_30852cztM0_level2.evt modeM0/AS1A10_071T40_9000004458_30852cztM0_level2_quad_clean.evt
Size (bytes)241,488,00048,709,440
Size230.3 MB 46.5 MB
Events in quadrant A1,185,070334,598
Events in quadrant B2,977,792321,727
Events in quadrant C1,263,556317,705
Events in quadrant D1,707,154312,473

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052780
B0107720
C053430
D069400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A263010.038023%
B26311535.815279%
C2631100.380084%
D2631180.684151%

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 2630 2630 0 0 0.00% 0.00%
B 2631 2631 62 62 2.36% 2.36%
C 2631 2631 0 0 0.00% 0.00%
D 2631 2631 18 18 0.68% 0.68%

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 13 254 4968 73.97 306 299 63.1
A 3 137 3039 43.41 306 299 63.1
A 0 226 2572 36.01 306 299 63.1
B 6 36 1002284 17048.26 297 289 58.8
B 6 159 709466 12066.16 297 289 58.8
B 5 255 37338 630.36 297 289 58.8
C 14 238 47749 675.63 291 293 70.2
C 3 233 30852 435.07 291 293 70.2
C 0 10 29112 410.29 291 293 70.2
D 8 195 497781 6911.16 296 289 72.0
D 1 52 24111 330.94 296 289 72.0
D 2 250 22246 305.03 296 289 72.0

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