ASTROSAT CZTI

Data Quality Report

Orbit 07134

Creation date: 2024-06-27T15:15:58.448695
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_051T01_9000000972_07134cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07134cztM0_level2_quad_clean.evt
Size (bytes)1,410,154,560286,099,200
Size1.3 GB 272.8 MB
Events in quadrant A9,947,3641,805,614
Events in quadrant B10,621,2721,852,289
Events in quadrant C9,897,9751,802,742
Events in quadrant D10,784,5431,723,207

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04360
B04360
C04360
D04360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0442675
B0460884
C0444224
D0472064

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21531770.357624%
B215311340.622358%
C215311070.496958%
D215312661.235428%

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 26016 21533 4 4 0.02% 0.02%
B 26016 21533 14 14 0.05% 0.07%
C 26016 21533 44 44 0.17% 0.20%
D 26016 21533 173 173 0.66% 0.80%

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 8 15 113467 218.57 2519 2470 507.8
A 13 248 74722 142.27 2519 2470 507.8
A 3 1 39008 71.95 2519 2470 507.8
B 10 246 447005 920.4 2543 2483 483.0
B 0 214 182463 372.66 2543 2483 483.0
B 0 219 58649 116.29 2543 2483 483.0
C 4 254 262479 461.4 2445 2456 563.6
C 9 68 73264 125.65 2445 2456 563.6
C 13 61 19127 29.58 2445 2456 563.6
D 2 216 514350 865.62 2426 2353 591.5
D 12 233 478042 804.23 2426 2353 591.5
D 8 195 234191 391.96 2426 2353 591.5

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