ASTROSAT CZTI

Data Quality Report

Orbit 37338

Creation date: 2024-06-27T21:38:41.646986
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/AS1A10_094T15_9000005312_37338cztM0_level2.evt modeM0/AS1A10_094T15_9000005312_37338cztM0_level2_quad_clean.evt
Size (bytes)188,602,56044,570,880
Size179.9 MB 42.5 MB
Events in quadrant A1,174,045291,357
Events in quadrant B1,148,020295,554
Events in quadrant C1,278,145299,406
Events in quadrant D1,938,901282,789

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051660
B052113
C053704
D074300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A251360.238758%
B251140.159299%
C2510180.717131%
D25131184.695583%

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 2513 2513 2 2 0.08% 0.08%
B 2513 2512 2 2 0.08% 0.08%
C 2513 2512 15 15 0.60% 0.60%
D 2513 2513 112 112 4.46% 4.46%

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 92045 1668.49 265 260 55.0
A 9 143 30552 550.65 265 260 55.0
A 13 6 7836 137.72 265 260 55.0
B 0 190 44587 860.48 262 255 51.5
B 15 85 15893 303.53 262 255 51.5
B 5 172 12138 230.65 262 255 51.5
C 14 254 107830 1772.6 255 256 60.7
C 15 214 103207 1696.42 255 256 60.7
C 1 23 63387 1040.27 255 256 60.7
D 2 249 508144 8115.66 253 245 62.6
D 12 235 304347 4859.21 253 245 62.6
D 2 153 56755 902.97 253 245 62.6

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