ASTROSAT CZTI

Data Quality Report

Orbit 14277

Creation date: 2024-06-27T16:52:50.450910
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/AS1G08_014T01_9000002104_14277cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14277cztM0_level2_quad_clean.evt
Size (bytes)647,375,04087,698,880
Size617.4 MB 83.6 MB
Events in quadrant A4,107,818547,304
Events in quadrant B5,154,179542,179
Events in quadrant C4,197,553512,972
Events in quadrant D5,607,291500,065

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172172
B0204531
C0171371
D0218211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79671892.372286%
B79676658.346931%
C7967891.117108%
D79673995.008159%

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 8583 7972 0 0 0.00% 0.00%
B 8583 7972 314 314 3.66% 3.94%
C 8583 7972 0 0 0.00% 0.00%
D 8583 7972 266 266 3.10% 3.34%

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 8 15 195934 964.16 993 969 202.2
A 12 189 74475 363.51 993 969 202.2
A 9 143 11804 53.58 993 969 202.2
B 0 182 852231 4629.14 953 928 183.9
B 0 229 429580 2330.89 953 928 183.9
B 3 209 53028 283.31 953 928 183.9
C 3 233 505179 2277.63 947 950 221.4
C 13 61 6769 26.28 947 950 221.4
C 14 234 3328 10.74 947 950 221.4
D 12 110 989427 4379.12 945 921 225.7
D 5 222 774898 3428.75 945 921 225.7
D 10 199 102503 450.01 945 921 225.7

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