ASTROSAT CZTI

Data Quality Report

Orbit 14208

Creation date: 2024-06-27T16:51:54.125416
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/AS1C03_022T01_9000002098_14208cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14208cztM0_level2_quad_clean.evt
Size (bytes)422,147,52058,579,200
Size402.6 MB 55.9 MB
Events in quadrant A1,637,926439,229
Events in quadrant B1,690,976435,194
Events in quadrant C1,619,212421,836
Events in quadrant D7,596,188226,721

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12733597094080
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073241
B075451
C071951
D0249641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3525150.425532%
B3525280.794326%
C352530.085106%
D3525270876.822695%

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 3526 3526 2 2 0.06% 0.06%
B 3526 3526 1 1 0.03% 0.03%
C 3526 3526 0 0 0.00% 0.00%
D 3526 3526 2321 2321 65.83% 65.83%

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 46068 552.61 399 390 82.7
A 12 189 30053 358.86 399 390 82.7
A 9 143 16229 191.62 399 390 82.7
B 4 97 27915 347.15 401 390 79.3
B 0 219 24050 298.41 401 390 79.3
B 0 85 21298 263.7 401 390 79.3
C 3 233 105775 1143.83 388 391 92.1
C 13 61 2738 25.47 388 391 92.1
C 14 234 1357 10.48 388 391 92.1
D 13 122 6129347 110554.65 227 222 55.4
D 5 222 496804 8957.14 227 222 55.4
D 10 199 49754 893.44 227 222 55.4

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