ASTROSAT CZTI

Data Quality Report

Orbit 04567

Creation date: 2024-06-27T14:43:53.032177
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_233T10_9000000570_04567cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04567cztM0_level2_quad_clean.evt
Size (bytes)635,492,160104,509,440
Size606.1 MB 99.7 MB
Events in quadrant A4,211,668642,732
Events in quadrant B5,111,592624,471
Events in quadrant C4,210,086622,419
Events in quadrant D5,060,366608,496

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01979489
B021876131
C019867107
D022194125

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01960
B01960
C01962
D01960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9616240.249584%
B96121301.352476%
C9611250.260119%
D96071391.446862%

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 10244 9659 8 8 0.08% 0.08%
B 10244 9659 62 62 0.61% 0.64%
C 10244 9657 7 7 0.07% 0.07%
D 10244 9658 112 112 1.09% 1.16%

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 13 251 92266 421.27 1055 1030 216.6
A 7 16 33491 149.88 1055 1030 216.6
A 0 226 10811 45.16 1055 1030 216.6
B 14 167 282345 1381.89 1061 1032 203.6
B 5 70 160562 783.66 1061 1032 203.6
B 4 80 127426 620.89 1061 1032 203.6
C 14 48 119993 499.46 1025 1028 238.2
C 9 247 71697 296.69 1025 1028 238.2
C 13 61 8538 31.53 1025 1028 238.2
D 13 235 521199 2102.69 1023 993 247.4
D 2 136 168429 676.78 1023 993 247.4
D 7 67 149253 599.27 1023 993 247.4

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