ASTROSAT CZTI

Data Quality Report

Orbit 23245

Creation date: 2024-06-27T18:51:46.372162
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/AS1A08_004T03_9000003438_23245cztM0_level2.evt modeM0/AS1A08_004T03_9000003438_23245cztM0_level2_quad_clean.evt
Size (bytes)252,256,32038,741,760
Size240.6 MB 36.9 MB
Events in quadrant A1,765,368243,734
Events in quadrant B1,792,333248,532
Events in quadrant C1,775,317228,226
Events in quadrant D2,084,589221,742

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071801
B072441
C071101
D082691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3247692.125038%
B3247782.402217%
C3247952.925778%
D32471203.695719%

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 4507 3247 0 0 0.00% 0.00%
B 4507 3247 2 2 0.04% 0.06%
C 4507 3247 2 2 0.04% 0.06%
D 4507 3247 57 57 1.26% 1.76%

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 6 16 10279 106.33 455 446 92.5
A 13 254 4995 49.19 455 446 92.5
A 0 226 4010 38.54 455 446 92.5
B 0 190 16613 190.07 450 441 85.1
B 12 111 9799 109.99 450 441 85.1
B 11 111 8534 95.12 450 441 85.1
C 14 238 68022 671.22 426 429 100.7
C 0 10 38627 379.32 426 429 100.7
C 7 247 4409 39.52 426 429 100.7
D 1 52 309288 2946.63 435 425 104.8
D 7 238 68416 648.65 435 425 104.8
D 1 239 20375 190.33 435 425 104.8

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