ASTROSAT CZTI

Data Quality Report

Orbit 23780

Creation date: 2024-06-27T18:58:38.129380
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/AS1T03_180T01_9000003524_23780cztM0_level2.evt modeM0/AS1T03_180T01_9000003524_23780cztM0_level2_quad_clean.evt
Size (bytes)526,299,84065,136,960
Size501.9 MB 62.1 MB
Events in quadrant A3,378,614392,119
Events in quadrant B3,960,421396,461
Events in quadrant C3,380,126378,142
Events in quadrant D4,795,072367,854

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140872
B0158131
C0139281
D0186661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6267661.053135%
B62672644.212542%
C6267971.547790%
D62671292.058401%

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 7527 6267 0 0 0.00% 0.00%
B 7527 6267 155 155 2.06% 2.47%
C 7527 6267 0 0 0.00% 0.00%
D 7527 6267 63 63 0.84% 1.01%

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 13 254 11501 61.54 876 861 172.9
A 0 226 7794 40.1 876 861 172.9
A 3 137 6981 35.4 876 861 172.9
B 3 64 532575 3333.56 860 844 159.5
B 0 189 18839 112.82 860 844 159.5
B 12 111 17837 106.53 860 844 159.5
C 14 238 133603 701.89 828 836 189.2
C 4 175 12186 60.0 828 836 189.2
C 13 61 5760 26.03 828 836 189.2
D 8 195 1133984 5667.18 839 819 200.0
D 1 52 160282 797.51 839 819 200.0
D 12 233 149944 745.8 839 819 200.0

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