ASTROSAT CZTI

Data Quality Report

Orbit 46247

Creation date: 2024-06-27T23:20:49.492782
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/AS1A13_094T02_9000006190_46247cztM0_level2.fits modeM0/AS1A13_094T02_9000006190_46247cztM0_level2_quad_clean.evt
Size (bytes)658,062,720125,732,160
Size627.6 MB 119.9 MB
Events in quadrant A7,683,868820,296
Events in quadrant B5,465,607841,947
Events in quadrant C4,014,397852,286
Events in quadrant D6,579,746739,032

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283011
B0217631
C0178961
D0251601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79533704.652332%
B79544065.104350%
C79541361.709832%
D79546347.970832%

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 8303 7954 175 175 2.11% 2.20%
B 8304 7954 226 226 2.72% 2.84%
C 8304 7955 103 103 1.24% 1.29%
D 8304 7955 549 549 6.61% 6.90%

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 3585517 19705.54 866 846 181.9
A 0 247 553864 3040.03 866 846 181.9
A 6 10 122445 668.45 866 846 181.9
B 3 112 1186721 7043.84 863 836 168.4
B 5 255 429738 2547.56 863 836 168.4
B 5 172 191951 1135.17 863 836 168.4
C 12 2 404416 1966.02 874 875 205.3
C 14 254 90891 438.55 874 875 205.3
C 1 3 54897 263.19 874 875 205.3
D 1 52 1175312 5510.3 847 819 213.1
D 2 249 645307 3023.7 847 819 213.1
D 12 128 493338 2310.72 847 819 213.1

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