ASTROSAT CZTI

Data Quality Report

Orbit 11038

Creation date: 2024-06-27T16:07:18.378111
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/AS1A04_113T01_9000001604_11038cztM0_level2.evt modeM0/AS1A04_113T01_9000001604_11038cztM0_level2_quad_clean.evt
Size (bytes)2,156,480,640264,954,240
Size2.0 GB 252.7 MB
Events in quadrant A21,839,0151,523,292
Events in quadrant B14,531,6591,661,655
Events in quadrant C10,430,3771,717,744
Events in quadrant D16,954,8561,533,505

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253
B0255
C0253
D0253

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010456524354
B07268514045
C05824510311
D08285516697

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0582104
B0582100
C058280
D0582108

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22440321414.322638%
B2315012565.425486%
C23479890.379062%
D2281010654.669005%

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 31169 24001 2144 2144 6.88% 8.93%
B 31167 24853 679 679 2.18% 2.73%
C 31171 25119 0 0 0.00% 0.00%
D 31172 24462 875 875 2.81% 3.58%

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 14 238 9698333 19103.43 2492 2439 507.5
A 8 5 1286230 2529.4 2492 2439 507.5
A 15 174 1128589 2218.81 2492 2439 507.5
B 4 239 3787796 7476.03 2668 2599 506.3
B 0 214 83637 160.06 2668 2599 506.3
B 0 187 65656 124.54 2668 2599 506.3
C 13 61 19813 27.78 2664 2676 616.8
C 8 128 19676 27.56 2664 2676 616.8
C 8 112 12115 15.3 2664 2676 616.8
D 1 52 3469397 5722.99 2526 2454 605.8
D 11 129 1426351 2350.47 2526 2454 605.8
D 14 34 709882 1167.77 2526 2454 605.8

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