ASTROSAT CZTI

Data Quality Report

Orbit 24145

Creation date: 2024-06-27T19:02:43.822441
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_047T01_9000003572_24145cztM0_level2.evt modeM0/AS1A07_047T01_9000003572_24145cztM0_level2_quad_clean.evt
Size (bytes)213,750,72062,490,240
Size203.8 MB 59.6 MB
Events in quadrant A1,503,751436,880
Events in quadrant B1,513,386442,382
Events in quadrant C1,505,449406,895
Events in quadrant D1,754,843402,188

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061231
B061381
C061681
D069861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2861612.132122%
B2861451.572877%
C2861873.040895%
D2861652.271933%

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 4096 2862 0 0 0.00% 0.00%
B 4096 2862 0 0 0.00% 0.00%
C 4096 2862 0 0 0.00% 0.00%
D 4096 2862 5 5 0.12% 0.17%

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 4940 58.13 389 381 78.4
A 0 226 3365 38.05 389 381 78.4
A 3 137 3163 35.47 389 381 78.4
B 12 111 8316 108.3 384 375 73.3
B 0 190 7526 97.52 384 375 73.3
B 11 111 7418 96.05 384 375 73.3
C 14 238 59296 690.14 366 366 85.4
C 7 247 6155 67.8 366 366 85.4
C 3 233 5397 58.92 366 366 85.4
D 7 238 122973 1341.72 376 363 91.4
D 8 195 109512 1194.41 376 363 91.4
D 1 52 91154 993.52 376 363 91.4

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