ASTROSAT CZTI

Data Quality Report

Orbit 00132

Creation date: 2024-06-27T13:56:48.697707
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/AS1P01_003T01_9000000002_00132cztM0_level2.evt modeM0/AS1P01_003T01_9000000002_00132cztM0_level2_quad_clean.evt
Size (bytes)540,852,48050,019,840
Size515.8 MB 47.7 MB
Events in quadrant A4,631,354317,713
Events in quadrant B3,987,224328,649
Events in quadrant C3,529,224322,806
Events in quadrant D4,013,855313,815

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0724
B0724
C0713
D0715

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175621433
B0153311179
C0138261030
D0153961144

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A324846714.378079%
B3257150.460547%
C326620.061237%
D3266310.949173%

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 6912 3284 584 584 8.45% 17.78%
B 6912 3293 118 118 1.71% 3.58%
C 6906 3293 32 32 0.46% 0.97%
D 6913 3298 215 215 3.11% 6.52%

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 15 127 1145061 7726.68 887 869 148.1
A 15 106 8845 53.86 887 869 148.1
A 13 65 7170 42.55 887 869 148.1
B 8 236 59654 274.33 977 978 213.9
B 5 216 58312 268.05 977 978 213.9
B 0 182 40805 186.2 977 978 213.9
C 9 204 8472 30.4 887 920 248.4
C 9 208 7840 27.86 887 920 248.4
C 0 188 5895 20.03 887 920 248.4
D 10 244 187738 804.8 894 905 232.1
D 12 207 62499 265.32 894 905 232.1
D 10 151 52947 224.18 894 905 232.1

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