ASTROSAT CZTI

Data Quality Report

Orbit 28122

Creation date: 2024-06-27T19:48:18.917673
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/AS1A10_090T14_9000004064_28122cztM0_level2.evt modeM0/AS1A10_090T14_9000004064_28122cztM0_level2_quad_clean.evt
Size (bytes)553,924,80075,087,360
Size528.3 MB 71.6 MB
Events in quadrant A3,226,533468,122
Events in quadrant B3,910,367472,963
Events in quadrant C3,298,043449,692
Events in quadrant D5,894,351423,741

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136910
B0157640
C0138950
D0220170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6589100.151768%
B65881432.170613%
C6588500.758956%
D658868810.443230%

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 7759 6590 0 0 0.00% 0.00%
B 7758 6589 86 86 1.11% 1.31%
C 7758 6589 0 0 0.00% 0.00%
D 7758 6589 555 555 7.15% 8.42%

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 10748 59.67 835 820 166.4
A 3 137 7690 41.29 835 820 166.4
A 0 226 7150 38.04 835 820 166.4
B 10 245 474477 3051.01 830 811 155.2
B 10 246 134333 860.05 830 811 155.2
B 5 255 27566 172.34 830 811 155.2
C 14 238 129960 689.74 801 808 187.2
C 3 233 39202 205.05 801 808 187.2
C 13 61 5317 24.08 801 808 187.2
D 12 2 1590030 8718.46 764 745 182.3
D 1 52 545072 2986.05 764 745 182.3
D 8 195 274353 1500.95 764 745 182.3

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