ASTROSAT CZTI

Data Quality Report

Orbit 23554

Creation date: 2024-06-27T18:56:05.430445
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/AS1A07_011T01_9000003482_23554cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23554cztM0_level2_quad_clean.evt
Size (bytes)499,703,04098,461,440
Size476.6 MB 93.9 MB
Events in quadrant A3,336,163629,028
Events in quadrant B3,602,767637,650
Events in quadrant C3,529,152611,337
Events in quadrant D4,177,554603,642

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146752
B0152232
C0151882
D0173302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7183811.127663%
B71831031.433941%
C71831612.241403%
D71831251.740220%

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 7593 7183 0 0 0.00% 0.00%
B 7593 7183 4 4 0.05% 0.06%
C 7593 7183 42 42 0.55% 0.58%
D 7593 7183 42 42 0.55% 0.58%

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 12248 65.49 864 845 174.1
A 3 137 7666 39.18 864 845 174.1
A 0 226 7646 39.06 864 845 174.1
B 0 229 69950 420.06 858 834 164.5
B 0 189 67761 406.76 858 834 164.5
B 0 230 32274 191.08 858 834 164.5
C 10 9 165720 864.22 820 824 190.8
C 14 238 130396 679.09 820 824 190.8
C 7 247 19484 97.79 820 824 190.8
D 9 85 638727 3130.18 835 809 203.8
D 1 52 251779 1231.48 835 809 203.8
D 13 174 49500 238.92 835 809 203.8

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