ASTROSAT CZTI

Data Quality Report

Orbit 32382

Creation date: 2024-06-27T20:39:34.696578
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/AS1A09_131T01_9000004702_32382cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32382cztM0_level2_quad_clean.evt
Size (bytes)283,224,96054,947,520
Size270.1 MB 52.4 MB
Events in quadrant A1,285,831392,891
Events in quadrant B3,604,396336,237
Events in quadrant C1,682,780385,834
Events in quadrant D1,835,428370,980

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054041
B0124591
C067061
D070891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247050.202429%
B247084834.331984%
C24701385.587045%
D2470823.319838%

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 2470 2470 0 0 0.00% 0.00%
B 2470 2469 588 588 23.81% 23.82%
C 2470 2470 55 55 2.23% 2.23%
D 2470 2470 55 55 2.23% 2.23%

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 6 8084 119.76 327 321 64.8
A 12 96 5098 73.7 327 321 64.8
A 13 254 4911 70.81 327 321 64.8
B 4 80 1182473 22022.46 286 280 53.7
B 6 159 695848 12957.37 286 280 53.7
B 5 172 499719 9303.79 286 280 53.7
C 3 233 267195 3504.4 324 327 76.2
C 14 238 62414 815.3 324 327 76.2
C 0 10 47964 625.55 324 327 76.2
D 8 195 286295 3721.91 322 316 76.8
D 12 6 71766 929.9 322 316 76.8
D 13 249 70409 912.23 322 316 76.8

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