ASTROSAT CZTI

Data Quality Report

Orbit 30123

Creation date: 2024-06-27T20:11:11.765867
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_097T01_9000004334_30123cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30123cztM0_level2_quad_clean.evt
Size (bytes)544,003,200113,518,080
Size518.8 MB 108.3 MB
Events in quadrant A3,282,106755,070
Events in quadrant B5,054,654756,443
Events in quadrant C4,112,194742,528
Events in quadrant D3,594,232738,842

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134692
B0194272
C0164672
D0143792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6380530.830721%
B63801382.163009%
C63801852.899687%
D6380490.768025%

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 7645 6381 1 1 0.01% 0.02%
B 7645 6381 0 0 0.00% 0.00%
C 7645 6381 1 1 0.01% 0.02%
D 7645 6381 14 14 0.18% 0.22%

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 8 192 21818 127.03 845 828 165.2
A 13 254 11327 63.54 845 828 165.2
A 3 137 7571 40.81 845 828 165.2
B 6 159 1755606 11352.69 833 813 154.6
B 0 190 21865 136.2 833 813 154.6
B 12 111 17955 110.9 833 813 154.6
C 3 233 676167 3513.68 832 838 192.2
C 14 238 144352 746.69 832 838 192.2
C 15 208 19207 95.57 832 838 192.2
D 1 52 119020 582.5 839 821 202.9
D 8 195 117180 573.43 839 821 202.9
D 12 227 74480 363.0 839 821 202.9

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