ASTROSAT CZTI

Data Quality Report

Orbit 02290

Creation date: 2024-06-27T14:15:44.798006
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/AS1T01_058T01_9000000348_02290cztM0_level2.evt modeM0/AS1T01_058T01_9000000348_02290cztM0_level2_quad_clean.evt
Size (bytes)17,170,5602,799,360
Size16.4 MB 2.7 MB
Events in quadrant A161,47215,595
Events in quadrant B100,6557,900
Events in quadrant C151,14512,532
Events in quadrant D79,31016,024

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02733597094080
B0-1-1
C0-1-1
D0-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069536204
B079017440
C072096532
D090608688

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37510.266667%
B23100.000000%
C33900.000000%
D18700.000000%

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 7149 662 0 0 0.00% 0.00%
B 6639 411 0 0 0.00% 0.00%
C 7149 607 0 0 0.00% 0.00%
D 6187 321 0 0 0.00% 0.00%

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 0 226 471 40.27 41 40 10.7
A 12 194 449 38.22 41 40 10.7
A 12 133 214 16.26 41 40 10.7
B 12 111 404 52.87 25 25 7.2
B 11 111 355 46.03 25 25 7.2
B 8 61 292 37.25 25 25 7.2
C 5 234 5379 495.67 36 36 10.8
C 14 223 1079 96.76 36 36 10.8
C 13 61 325 26.81 36 36 10.8
D 15 194 441 63.2 20 19 6.7
D 9 66 286 39.99 20 19 6.7
D 14 226 264 36.69 20 19 6.7

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