ASTROSAT CZTI

Data Quality Report

Orbit 30457

Creation date: 2024-06-27T20:15:29.832545
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/AS1A10_121T02_9000004378_30457cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30457cztM0_level2_quad_clean.evt
Size (bytes)555,321,60097,718,400
Size529.6 MB 93.2 MB
Events in quadrant A3,238,473644,386
Events in quadrant B5,061,909642,358
Events in quadrant C3,394,531632,715
Events in quadrant D4,713,155616,895

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134291
B0188592
C0139061
D0183581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6056661.089828%
B60561362.245707%
C60561552.559445%
D60561893.120872%

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 7276 6057 9 9 0.12% 0.15%
B 7276 6057 4 4 0.05% 0.07%
C 7276 6057 11 11 0.15% 0.18%
D 7276 6057 87 87 1.20% 1.44%

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 4 2 117921 729.38 805 789 160.6
A 8 192 11567 67.11 805 789 160.6
A 13 254 11512 66.77 805 789 160.6
B 6 159 1793502 11896.41 799 782 150.7
B 0 229 96454 634.88 799 782 150.7
B 5 255 23832 152.96 799 782 150.7
C 14 238 135468 741.53 785 790 181.6
C 9 54 74597 406.38 785 790 181.6
C 0 10 46679 252.66 785 790 181.6
D 13 104 1360889 6771.15 779 765 200.9
D 12 227 210138 1042.33 779 765 200.9
D 8 195 141875 702.49 779 765 200.9

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