ASTROSAT CZTI

Data Quality Report

Orbit 05804

Creation date: 2024-06-27T14:59:21.366876
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/AS1G06_089T01_9000000746_05804cztM0_level2.evt modeM0/AS1G06_089T01_9000000746_05804cztM0_level2_quad_clean.evt
Size (bytes)442,045,44063,754,560
Size421.6 MB 60.8 MB
Events in quadrant A3,234,654378,164
Events in quadrant B3,226,309384,176
Events in quadrant C3,066,987372,212
Events in quadrant D3,429,508354,312

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135243
B0134122
C0131602
D0143182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6326971.533354%
B63261221.928549%
C6326540.853620%
D6326620.980082%

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 7646 6327 3 3 0.04% 0.05%
B 7646 6327 1 1 0.01% 0.02%
C 7646 6327 0 0 0.00% 0.00%
D 7646 6327 6 6 0.08% 0.09%

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 0 31 82380 496.29 814 797 164.4
A 15 79 17842 103.69 814 797 164.4
A 0 226 8076 44.28 814 797 164.4
B 15 54 26288 163.7 821 802 155.7
B 12 111 14470 87.79 821 802 155.7
B 11 111 11437 68.31 821 802 155.7
C 9 160 9884 50.59 780 785 179.9
C 14 67 6556 32.08 780 785 179.9
C 13 61 6387 31.14 780 785 179.9
D 8 230 322746 1706.67 776 751 188.7
D 8 195 80764 424.09 776 751 188.7
D 2 136 31989 165.57 776 751 188.7

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