ASTROSAT CZTI

Data Quality Report

Orbit 03985

Creation date: 2024-06-27T14:36:00.815957
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/AS1G05_247T01_9000000512_03985cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03985cztM0_level2_quad_clean.evt
Size (bytes)569,240,640116,858,880
Size542.9 MB 111.4 MB
Events in quadrant A4,021,723757,199
Events in quadrant B3,988,802763,758
Events in quadrant C3,304,876770,322
Events in quadrant D5,405,506716,323

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174771
B0170700
C0156540
D0215970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76372993.915150%
B76372212.893806%
C7637841.099908%
D76377229.453974%

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 7637 7637 74 74 0.97% 0.97%
B 7637 7637 57 57 0.75% 0.75%
C 7637 7637 0 0 0.00% 0.00%
D 7637 7637 603 603 7.90% 7.90%

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 0 50 412424 2358.37 848 828 174.5
A 4 48 148858 848.19 848 828 174.5
A 0 118 125773 715.91 848 828 174.5
B 14 167 472273 2886.04 858 836 163.4
B 15 204 88229 535.0 858 836 163.4
B 7 252 45889 275.8 858 836 163.4
C 9 144 19236 94.74 837 837 194.2
C 10 65 12017 57.57 837 837 194.2
C 13 61 7188 32.7 837 837 194.2
D 12 110 1671783 8522.13 815 790 196.1
D 2 63 195677 993.93 815 790 196.1
D 13 239 124981 633.38 815 790 196.1

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