ASTROSAT CZTI

Data Quality Report

Orbit 05345

Creation date: 2024-06-27T14:54:09.266109
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_152T01_9000000676_05345cztM0_level2.evt modeM0/AS1G05_152T01_9000000676_05345cztM0_level2_quad_clean.evt
Size (bytes)94,150,08019,154,880
Size89.8 MB 18.3 MB
Events in quadrant A585,922124,550
Events in quadrant B618,771127,820
Events in quadrant C650,575127,367
Events in quadrant D910,926108,568

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B041
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03178539
B03181506
C03225457
D045101024

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0308
B0302
C0308
D0308

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1214322.635914%
B1232302.435065%
C1255493.904382%
D1132897.862191%

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 1887 1401 3 3 0.16% 0.21%
B 1887 1412 0 0 0.00% 0.00%
C 1887 1414 0 0 0.00% 0.00%
D 1887 1369 6 6 0.32% 0.44%

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 24476 791.32 142 139 30.8
A 0 50 6575 209.27 142 139 30.8
A 13 251 5019 158.67 142 139 30.8
B 4 80 27650 896.48 149 145 30.7
B 0 199 3552 111.05 149 145 30.7
B 4 142 3263 101.63 149 145 30.7
C 1 16 69003 1889.9 148 147 36.4
C 9 16 1595 39.74 148 147 36.4
C 13 61 1174 28.19 148 147 36.4
D 2 63 374148 11292.49 129 124 33.1
D 2 16 21302 639.4 129 124 33.1
D 8 195 14498 433.98 129 124 33.1

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