ASTROSAT CZTI

Data Quality Report

Orbit 34144

Creation date: 2024-06-27T20:57:03.338234
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/AS1A11_059T05_9000004876_34144cztM0_level2.evt modeM0/AS1A11_059T05_9000004876_34144cztM0_level2_quad_clean.evt
Size (bytes)694,100,16062,916,480
Size661.9 MB 60.0 MB
Events in quadrant A2,639,273418,230
Events in quadrant B9,573,946333,826
Events in quadrant C3,295,076405,168
Events in quadrant D5,145,207366,900

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115533
B0321382
C0130272
D0190092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A542830.055269%
B5428345163.577745%
C54281071.971260%
D54284337.977155%

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 7189 5429 0 0 0.00% 0.00%
B 7189 5429 3285 3285 45.69% 60.51%
C 7189 5429 104 104 1.45% 1.92%
D 7189 5429 470 470 6.54% 8.66%

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 15 169 150824 1174.14 637 625 127.9
A 10 83 21223 161.02 637 625 127.9
A 13 254 9176 66.84 637 625 127.9
B 5 31 3104839 34525.93 468 457 89.9
B 5 15 2797827 31111.44 468 457 89.9
B 5 14 1498602 16661.88 468 457 89.9
C 0 10 504096 3515.67 617 623 143.2
C 15 214 232637 1620.11 617 623 143.2
C 14 254 108164 750.94 617 623 143.2
D 10 118 1674258 11342.14 600 584 147.6
D 8 195 807094 5465.55 600 584 147.6
D 7 223 191748 1295.48 600 584 147.6

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