ASTROSAT CZTI

Data Quality Report

Orbit 10234

Creation date: 2024-06-27T15:56:41.210947
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/AS1A03_099T01_9000001472_10234cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10234cztM0_level2_quad_clean.evt
Size (bytes)1,044,144,000241,695,360
Size995.8 MB 230.5 MB
Events in quadrant A7,144,2881,591,278
Events in quadrant B7,855,5261,583,165
Events in quadrant C6,715,6371,594,487
Events in quadrant D8,955,9371,582,266

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04641816743
B05009518216
C04469215584
D05259116540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0436137
B0436142
C0436141
D0426128

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05214
B05315
C05315
D05214

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138072571.861375%
B137513832.785252%
C139602251.611748%
D146114162.847170%

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 18917 14728 1 1 0.01% 0.01%
B 18917 14717 76 76 0.40% 0.52%
C 18917 14828 0 0 0.00% 0.00%
D 18917 14945 137 137 0.72% 0.92%

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 8 15 170638 479.57 1771 1738 352.2
A 15 223 98760 275.48 1771 1738 352.2
A 15 239 34011 91.63 1771 1738 352.2
B 4 239 454442 1395.01 1740 1710 324.5
B 0 214 226224 691.8 1740 1710 324.5
B 11 51 118899 361.1 1740 1710 324.5
C 13 61 12935 28.65 1716 1728 391.1
C 0 207 11560 25.14 1716 1728 391.1
C 14 67 9674 20.31 1716 1728 391.1
D 1 52 1129572 2671.69 1797 1754 422.1
D 8 195 395999 933.93 1797 1754 422.1
D 2 14 320496 755.07 1797 1754 422.1

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