ASTROSAT CZTI

Data Quality Report

Orbit 23984

Creation date: 2024-06-27T19:00:49.269710
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/AS1A07_165T01_9000003558_23984cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_23984cztM0_level2_quad_clean.evt
Size (bytes)204,120,00037,765,440
Size194.7 MB 36.0 MB
Events in quadrant A959,147290,457
Events in quadrant B1,011,467294,544
Events in quadrant C984,680278,356
Events in quadrant D3,115,928161,913

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039311
B041281
C039741
D0103801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1593181.129944%
B1593322.008788%
C1593472.950408%
D1592111870.226131%

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 1593 1593 0 0 0.00% 0.00%
B 1593 1593 4 4 0.25% 0.25%
C 1593 1593 7 7 0.44% 0.44%
D 1592 1592 791 791 49.69% 49.69%

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 2729 49.44 248 244 50.3
A 0 226 2237 39.66 248 244 50.3
A 12 194 1836 31.68 248 244 50.3
B 0 197 41465 910.18 242 238 45.3
B 0 190 9795 210.99 242 238 45.3
B 0 228 9252 199.01 242 238 45.3
C 0 10 42177 785.35 231 234 53.4
C 14 238 38684 719.95 231 234 53.4
C 0 239 2383 40.24 231 234 53.4
D 12 218 1810454 46703.97 154 150 38.8
D 12 233 445153 11480.62 154 150 38.8
D 12 250 107420 2767.46 154 150 38.8

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