ASTROSAT CZTI

Data Quality Report

Orbit 09601

Creation date: 2024-06-27T15:48:15.176227
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_238T01_9000001364_09601cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09601cztM0_level2_quad_clean.evt
Size (bytes)447,318,72079,830,720
Size426.6 MB 76.1 MB
Events in quadrant A3,276,942499,601
Events in quadrant B3,331,663495,250
Events in quadrant C3,095,624480,442
Events in quadrant D3,379,138467,722

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157051528
B0159461523
C0153211386
D0160651630

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01524
B015111
C015214
D01528

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6767510.753657%
B6798711.044425%
C6810330.484581%
D6746320.474355%

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 7798 7362 0 0 0.00% 0.00%
B 7798 7386 2 2 0.03% 0.03%
C 7798 7363 0 0 0.00% 0.00%
D 7798 7343 4 4 0.05% 0.05%

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 1 162 40325 236.85 820 803 166.9
A 8 15 17927 102.62 820 803 166.9
A 1 178 16314 92.96 820 803 166.9
B 0 214 42608 266.1 821 802 157.1
B 4 80 42457 265.14 821 802 157.1
B 12 111 17559 106.66 821 802 157.1
C 13 61 5820 27.04 793 796 185.8
C 14 234 2274 7.96 793 796 185.8
C 3 202 1924 6.07 793 796 185.8
D 8 195 184099 956.73 785 765 191.6
D 10 199 62875 324.12 785 765 191.6
D 12 233 39869 204.06 785 765 191.6

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