ASTROSAT CZTI

Data Quality Report

Orbit 08526

Creation date: 2024-06-27T15:33:52.376320
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/AS1G07_060T01_9000001200_08526cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08526cztM0_level2_quad_clean.evt
Size (bytes)406,805,76076,199,040
Size388.0 MB 72.7 MB
Events in quadrant A2,893,743475,024
Events in quadrant B3,111,004482,527
Events in quadrant C2,807,933469,405
Events in quadrant D3,087,803449,894

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01271433
B01320638
C01265432
D01361533

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6172300.486066%
B6169741.199546%
C6172120.194426%
D6173340.550786%

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 7427 6188 0 0 0.00% 0.00%
B 7427 6187 25 25 0.34% 0.40%
C 7427 6188 0 0 0.00% 0.00%
D 7427 6188 10 10 0.13% 0.16%

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 15 236 16214 102.02 745 730 151.8
A 0 226 6861 40.4 745 730 151.8
A 15 174 6712 39.41 745 730 151.8
B 10 16 103027 723.94 746 728 141.3
B 0 214 40957 284.69 746 728 141.3
B 4 173 16823 113.9 746 728 141.3
C 13 61 5481 28.31 719 723 168.1
C 8 222 2295 9.35 719 723 168.1
C 3 202 1835 6.62 719 723 168.1
D 1 52 308248 1753.29 707 689 175.4
D 9 64 31560 175.98 707 689 175.4
D 2 234 17901 98.12 707 689 175.4

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