ASTROSAT CZTI

Data Quality Report

Orbit 22028

Creation date: 2024-06-27T18:35:31.404863
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_091T07_9000003254_22028cztM0_level2.evt modeM0/AS1A07_091T07_9000003254_22028cztM0_level2_quad_clean.evt
Size (bytes)474,716,160103,806,720
Size452.7 MB 99.0 MB
Events in quadrant A3,236,017692,562
Events in quadrant B3,369,349691,751
Events in quadrant C3,256,907662,184
Events in quadrant D4,075,482646,385

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135022
B0138882
C0135542
D0162212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6461490.758397%
B6462651.005881%
C6462741.145156%
D64622283.528319%

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 7636 6461 0 0 0.00% 0.00%
B 7637 6462 14 14 0.18% 0.22%
C 7637 6462 9 9 0.12% 0.14%
D 7637 6462 186 186 2.44% 2.88%

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 10263 57.23 836 821 165.0
A 15 236 8240 44.97 836 821 165.0
A 0 226 7215 38.76 836 821 165.0
B 3 64 109022 706.59 818 799 153.2
B 0 230 35550 226.89 818 799 153.2
B 12 111 18324 114.42 818 799 153.2
C 14 238 126351 694.3 785 789 180.8
C 10 22 63989 349.46 785 789 180.8
C 13 61 5547 26.31 785 789 180.8
D 11 176 369045 1926.67 796 773 191.1
D 1 52 299553 1563.11 796 773 191.1
D 2 136 205430 1070.69 796 773 191.1

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