ASTROSAT CZTI

Data Quality Report

Orbit 22422

Creation date: 2024-06-27T18:40:47.836391
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_007T03_9000003320_22422cztM0_level2.evt modeM0/AS1A07_007T03_9000003320_22422cztM0_level2_quad_clean.evt
Size (bytes)129,758,40035,328,960
Size123.7 MB 33.7 MB
Events in quadrant A790,377246,627
Events in quadrant B820,852254,813
Events in quadrant C894,849237,342
Events in quadrant D1,317,178217,678

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032371
B033361
C035551
D049321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A153130.195950%
B153120.130634%
C1531523.396473%
D15311399.079033%

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 1531 1531 0 0 0.00% 0.00%
B 1531 1531 0 0 0.00% 0.00%
C 1531 1531 22 22 1.44% 1.44%
D 1531 1531 126 126 8.23% 8.23%

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 15 174 3765 84.87 203 200 42.0
A 15 48 2828 62.56 203 200 42.0
A 13 254 2646 58.23 203 200 42.0
B 3 64 5414 131.21 206 202 39.7
B 0 229 4442 106.74 206 202 39.7
B 12 111 4068 97.33 206 202 39.7
C 0 10 78708 1638.15 199 200 47.9
C 14 238 31805 659.47 199 200 47.9
C 1 16 6169 124.55 199 200 47.9
D 13 172 472262 10025.05 190 184 47.1
D 1 52 101845 2158.87 190 184 47.1
D 2 136 10177 212.21 190 184 47.1

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