ASTROSAT CZTI

Data Quality Report

Orbit 07288

Creation date: 2024-06-27T15:18:07.756831
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/AS1G06_154T04_9000000998_07288cztM0_level2.evt modeM0/AS1G06_154T04_9000000998_07288cztM0_level2_quad_clean.evt
Size (bytes)122,374,08019,307,520
Size116.7 MB 18.4 MB
Events in quadrant A887,507109,881
Events in quadrant B916,680114,158
Events in quadrant C873,662113,078
Events in quadrant D894,175106,143

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039721
B040050
C039800
D040590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193290.465839%
B193240.207039%
C193250.258799%
D193250.258799%

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 1932 1932 0 0 0.00% 0.00%
B 1932 1932 0 0 0.00% 0.00%
C 1932 1932 0 0 0.00% 0.00%
D 1932 1932 2 2 0.10% 0.10%

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 0 226 2170 39.5 229 224 49.3
A 8 15 2045 36.96 229 224 49.3
A 12 194 1937 34.77 229 224 49.3
B 0 214 31110 663.79 228 222 46.5
B 12 111 4741 97.11 228 222 46.5
B 11 111 3838 77.71 228 222 46.5
C 1 16 6105 109.74 221 221 53.6
C 9 68 4459 79.04 221 221 53.6
C 13 61 1647 26.6 221 221 53.6
D 2 216 21350 377.84 221 213 55.9
D 1 52 20454 361.82 221 213 55.9
D 14 34 12603 221.48 221 213 55.9

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