ASTROSAT CZTI

Data Quality Report

Orbit 41203

Creation date: 2024-06-27T22:25:47.269023
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/AS1A12_101T02_9000005622_41203cztM0_level2.fits modeM0/AS1A12_101T02_9000005622_41203cztM0_level2_quad_clean.evt
Size (bytes)633,283,200180,624,960
Size603.9 MB 172.3 MB
Events in quadrant A5,512,6991,251,303
Events in quadrant B6,059,8011,235,255
Events in quadrant C5,524,8891,169,849
Events in quadrant D5,542,0151,097,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220843
B0248732
C0226562
D0236792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10342120.116032%
B103425174.999033%
C103422272.194933%
D103421651.595436%

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 14407 10344 4 4 0.03% 0.04%
B 14407 10344 448 448 3.11% 4.33%
C 14407 10344 232 232 1.61% 2.24%
D 14407 10344 147 147 1.02% 1.42%

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 10 83 838317 3486.87 1190 1168 240.1
A 12 189 35965 144.93 1190 1168 240.1
A 2 79 33342 134.01 1190 1168 240.1
B 5 255 1450026 6755.79 1141 1114 214.5
B 0 229 59066 270.21 1141 1114 214.5
B 0 190 50966 232.44 1141 1114 214.5
C 0 10 668885 2604.53 1122 1131 256.4
C 15 214 431047 1676.86 1122 1131 256.4
C 14 254 38932 147.44 1122 1131 256.4
D 13 249 418626 1530.56 1140 1110 272.8
D 2 249 266908 974.38 1140 1110 272.8
D 10 199 187332 682.66 1140 1110 272.8

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