ASTROSAT CZTI

Data Quality Report

Orbit 05359

Creation date: 2024-06-27T14:54:18.525487
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_106T01_9000000678_05359cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05359cztM0_level2_quad_clean.evt
Size (bytes)586,560,96080,112,960
Size559.4 MB 76.4 MB
Events in quadrant A4,284,752465,816
Events in quadrant B4,770,096462,526
Events in quadrant C3,950,812467,714
Events in quadrant D4,187,228445,567

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186653
B0196412
C0177684
D0185422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84234535.378131%
B84234535.378131%
C84223143.728331%
D84233534.190906%

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 9183 8424 59 59 0.64% 0.70%
B 9183 8424 65 65 0.71% 0.77%
C 9183 8424 0 0 0.00% 0.00%
D 9183 8424 47 47 0.51% 0.56%

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 265696 1257.21 1011 985 210.6
A 0 50 113209 532.99 1011 985 210.6
A 14 111 17883 80.25 1011 985 210.6
B 14 167 311575 1541.69 1030 1004 201.4
B 15 204 171275 845.24 1030 1004 201.4
B 4 80 97326 478.15 1030 1004 201.4
C 1 16 41516 173.26 996 1001 233.8
C 13 61 8299 31.21 996 1001 233.8
C 14 67 8016 30.0 996 1001 233.8
D 4 95 117109 473.43 992 961 245.3
D 8 195 110132 444.99 992 961 245.3
D 2 14 76232 306.81 992 961 245.3

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