ASTROSAT CZTI

Data Quality Report

Orbit 05481

Creation date: 2024-06-27T14:55:49.888391
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/AS1G06_139T01_9000000700_05481cztM0_level2.evt modeM0/AS1G06_139T01_9000000700_05481cztM0_level2_quad_clean.evt
Size (bytes)170,919,36020,738,880
Size163.0 MB 19.8 MB
Events in quadrant A1,189,452114,092
Events in quadrant B1,275,754115,397
Events in quadrant C1,199,567116,451
Events in quadrant D1,349,443112,000

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049812
B052361
C050221
D055521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2352743.146259%
B2352803.401361%
C2352602.551020%
D2352863.656463%

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 3337 2353 0 0 0.00% 0.00%
B 3337 2353 3 3 0.09% 0.13%
C 3337 2353 0 0 0.00% 0.00%
D 3337 2353 10 10 0.30% 0.42%

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 12 194 3039 42.3 308 301 64.7
A 0 226 2985 41.47 308 301 64.7
A 13 6 1601 20.09 308 301 64.7
B 15 204 47333 756.59 310 303 62.2
B 4 48 18697 295.91 310 303 62.2
B 12 111 5812 88.63 310 303 62.2
C 1 16 15637 213.34 301 303 71.9
C 9 247 4746 61.81 301 303 71.9
C 13 61 2501 30.58 301 303 71.9
D 2 152 94671 1252.19 301 292 75.4
D 12 233 40170 529.09 301 292 75.4
D 8 195 23382 306.35 301 292 75.4

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