ASTROSAT CZTI

Data Quality Report

Orbit 43962

Creation date: 2024-06-27T22:57:42.428293
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/AS1A13_065T02_9000005922_43962cztM0_level2.fits modeM0/AS1A13_065T02_9000005922_43962cztM0_level2_quad_clean.evt
Size (bytes)1,779,914,880251,426,880
Size1.7 GB 239.8 MB
Events in quadrant A27,395,7101,166,689
Events in quadrant B9,940,7381,894,211
Events in quadrant C9,203,6481,851,934
Events in quadrant D17,952,2411,454,658

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03640
B03640
C03640
D03640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0942683
B0422053
C0404303
D0658383

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18053732040.547277%
B180544742.625457%
C180542581.429046%
D18054252914.007976%

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 19775 18056 5784 5784 29.25% 32.03%
B 19776 18056 202 202 1.02% 1.12%
C 19776 18056 205 205 1.04% 1.14%
D 19776 18056 2272 2272 11.49% 12.58%

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 15 223 14483361 45788.55 1535 1498 316.3
A 14 238 3781356 11951.1 1535 1498 316.3
A 10 83 2487031 7858.72 1535 1498 316.3
B 0 200 703562 1837.0 1952 1886 382.0
B 5 172 379291 988.05 1952 1886 382.0
B 0 183 324620 844.92 1952 1886 382.0
C 15 158 866560 1893.92 1940 1949 456.5
C 14 254 295885 643.86 1940 1949 456.5
C 3 233 223723 485.79 1940 1949 456.5
D 1 52 2351157 5032.63 1844 1789 466.8
D 12 17 1611300 3447.77 1844 1789 466.8
D 5 235 1310998 2804.49 1844 1789 466.8

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