ASTROSAT CZTI

Data Quality Report

Orbit 28719

Creation date: 2024-06-27T19:55:20.648754
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_123T03_9000004120_28719cztM0_level2.evt modeM0/AS1A10_123T03_9000004120_28719cztM0_level2_quad_clean.evt
Size (bytes)335,364,48042,811,200
Size319.8 MB 40.8 MB
Events in quadrant A2,002,169266,968
Events in quadrant B1,983,439268,566
Events in quadrant C2,160,611251,516
Events in quadrant D3,761,442250,332

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080641
B079941
C086861
D0138291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A113992513907792846
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3650150.410959%
B3650150.410959%
C3650551.506849%
D365046812.821918%

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 3650 3650 0 0 0.00% 0.00%
B 3650 3650 1 1 0.03% 0.03%
C 3650 3650 15 15 0.41% 0.41%
D 3650 3650 466 466 12.77% 12.77%

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 13 254 6268 55.92 516 509 103.0
A 15 174 5391 47.41 516 509 103.0
A 0 226 4564 39.38 516 509 103.0
B 10 245 11071 112.88 499 489 93.7
B 12 111 10473 106.5 499 489 93.7
B 0 190 10223 103.84 499 489 93.7
C 3 233 200508 1794.9 480 484 111.4
C 14 238 80001 713.54 480 484 111.4
C 14 128 5431 44.39 480 484 111.4
D 1 52 724261 6493.92 470 458 111.5
D 12 233 722526 6478.36 470 458 111.5
D 8 195 460022 4123.18 470 458 111.5

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