ASTROSAT CZTI

Data Quality Report

Orbit 25132

Creation date: 2024-06-27T19:14:08.562670
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/AS1A07_091T03_9000003678_25132cztM0_level2.evt modeM0/AS1A07_091T03_9000003678_25132cztM0_level2_quad_clean.evt
Size (bytes)580,680,000105,261,120
Size553.8 MB 100.4 MB
Events in quadrant A3,907,724670,851
Events in quadrant B3,936,694678,601
Events in quadrant C4,166,044648,557
Events in quadrant D5,038,764639,689

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167900
B0167320
C0171690
D0201970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79001041.316456%
B79011331.683331%
C79011852.341476%
D79011571.987090%

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 9076 7902 27 27 0.30% 0.34%
B 9077 7903 5 5 0.06% 0.06%
C 9077 7901 0 0 0.00% 0.00%
D 9077 7902 43 43 0.47% 0.54%

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 15 174 114923 570.27 984 963 199.8
A 13 254 12015 55.31 984 963 199.8
A 3 137 9419 42.31 984 963 199.8
B 10 246 44112 227.63 981 956 189.6
B 12 111 23721 120.08 981 956 189.6
B 11 111 21181 106.68 981 956 189.6
C 7 247 271186 1191.72 950 955 226.8
C 14 238 147984 648.4 950 955 226.8
C 9 54 34008 145.76 950 955 226.8
D 1 52 622510 2640.16 962 934 235.4
D 8 195 416577 1765.45 962 934 235.4
D 2 244 221489 936.81 962 934 235.4

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