ASTROSAT CZTI

Data Quality Report

Orbit 07333

Creation date: 2024-06-27T15:18:31.879507
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/AS1A02_178T01_9000001006_07333cztM0_level2.evt modeM0/AS1A02_178T01_9000001006_07333cztM0_level2_quad_clean.evt
Size (bytes)780,410,88066,885,120
Size744.3 MB 63.8 MB
Events in quadrant A13,169,372184,977
Events in quadrant B2,936,445490,913
Events in quadrant C2,806,243480,609
Events in quadrant D4,307,015438,671

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0432571
B0129180
C0126830
D0172440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6133521084.950269%
B61331041.695744%
C6133761.239198%
D61335318.658079%

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 6132 6132 4280 4280 69.80% 69.80%
B 6133 6133 1 1 0.02% 0.02%
C 6133 6133 0 0 0.00% 0.00%
D 6133 6133 306 306 4.99% 4.99%

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 15 234 11901182 173579.09 326 318 68.6
A 14 111 4910 66.98 326 318 68.6
A 13 248 3437 45.49 326 318 68.6
B 11 51 36899 257.9 725 705 140.3
B 0 214 35992 251.44 725 705 140.3
B 0 213 22215 153.27 725 705 140.3
C 9 68 50224 300.14 706 706 165.0
C 13 61 5465 28.85 706 706 165.0
C 10 22 3035 14.12 706 706 165.0
D 2 216 1551511 9144.07 686 662 169.6
D 14 34 84784 496.0 686 662 169.6
D 12 233 53216 309.87 686 662 169.6

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