ASTROSAT CZTI

Data Quality Report

Orbit 05580

Creation date: 2024-06-27T14:56:52.071286
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/AS1A02_081T01_9000000720_05580cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05580cztM0_level2_quad_clean.evt
Size (bytes)594,345,60095,872,320
Size566.8 MB 91.4 MB
Events in quadrant A4,079,616577,892
Events in quadrant B4,930,310578,684
Events in quadrant C4,061,274564,824
Events in quadrant D4,297,635536,910

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01900
B01900
C01893
D01900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01899229
B02113940
C01902235
D01976032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9300430.462366%
B92971321.419813%
C9296320.344234%
D9298510.548505%

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 10177 9314 0 0 0.00% 0.00%
B 10177 9314 17 17 0.17% 0.18%
C 10177 9314 0 0 0.00% 0.00%
D 10177 9313 16 16 0.16% 0.17%

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 0 226 10315 43.29 1053 1025 214.6
A 12 194 10255 43.01 1053 1025 214.6
A 13 251 8370 34.23 1053 1025 214.6
B 15 204 433623 2116.27 1066 1038 204.4
B 11 51 127037 616.4 1066 1038 204.4
B 10 245 94820 458.79 1066 1038 204.4
C 1 16 18714 74.04 1026 1031 238.8
C 8 128 14932 58.2 1026 1031 238.8
C 12 4 12221 46.85 1026 1031 238.8
D 2 152 125630 492.69 1018 985 253.0
D 8 195 102066 399.55 1018 985 253.0
D 11 241 87047 340.18 1018 985 253.0

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