ASTROSAT CZTI

Data Quality Report

Orbit 14667

Creation date: 2024-06-27T16:58:14.895167
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/AS1A04_101T01_9000002170_14667cztM0_level2.evt modeM0/AS1A04_101T01_9000002170_14667cztM0_level2_quad_clean.evt
Size (bytes)283,443,84061,971,840
Size270.3 MB 59.1 MB
Events in quadrant A2,071,646409,916
Events in quadrant B1,930,700408,553
Events in quadrant C2,155,763408,160
Events in quadrant D2,183,678398,622

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085242
B078991
C087811
D087331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3545350.987306%
B3545381.071932%
C3545170.479549%
D35451283.610719%

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 3876 3547 3 3 0.08% 0.08%
B 3876 3547 3 3 0.08% 0.08%
C 3876 3547 2 2 0.05% 0.06%
D 3876 3547 134 134 3.46% 3.78%

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 8 15 264459 2807.11 453 442 94.1
A 1 162 23379 243.87 453 442 94.1
A 9 143 11823 121.01 453 442 94.1
B 0 219 47685 533.04 449 437 88.6
B 0 205 25248 279.91 449 437 88.6
B 0 230 23583 261.13 449 437 88.6
C 3 233 439775 4227.56 437 441 103.9
C 0 207 9918 91.19 437 441 103.9
C 13 61 3157 26.14 437 441 103.9
D 9 1 271941 2361.5 433 421 115.0
D 10 199 178840 1551.77 433 421 115.0
D 5 222 18822 160.04 433 421 115.0

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