ASTROSAT CZTI

Data Quality Report

Orbit 04715

Creation date: 2024-06-27T14:45:54.598728
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/AS1G05_235T01_9000000590_04715cztM0_level2.evt modeM0/AS1G05_235T01_9000000590_04715cztM0_level2_quad_clean.evt
Size (bytes)131,641,92017,668,800
Size125.5 MB 16.9 MB
Events in quadrant A937,20597,209
Events in quadrant B1,038,80496,560
Events in quadrant C866,51995,284
Events in quadrant D999,57493,851

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041940
B044980
C042150
D045710

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A208740.191663%
B208710.047916%
C208710.047916%
D208710.047916%

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 2087 2087 0 0 0.00% 0.00%
B 2087 2087 2 2 0.10% 0.10%
C 2087 2087 1 1 0.05% 0.05%
D 2087 2087 1 1 0.05% 0.05%

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 13 251 42985 868.47 230 226 49.2
A 13 14 4857 94.06 230 226 49.2
A 12 194 2413 44.42 230 226 49.2
B 15 204 61820 1319.01 232 227 46.7
B 14 167 29349 623.64 232 227 46.7
B 10 16 19854 420.31 232 227 46.7
C 9 247 13273 250.32 218 218 52.2
C 13 61 1876 31.79 218 218 52.2
C 9 16 979 14.59 218 218 52.2
D 2 63 87203 1581.54 218 211 55.0
D 2 234 26632 480.34 218 211 55.0
D 2 136 18150 326.14 218 211 55.0

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