ASTROSAT CZTI

Data Quality Report

Orbit 19249

Creation date: 2024-06-27T18:00:37.964831
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/AS1A05_115T01_9000002848_19249cztM0_level2.evt modeM0/AS1A05_115T01_9000002848_19249cztM0_level2_quad_clean.evt
Size (bytes)269,582,40055,370,880
Size257.1 MB 52.8 MB
Events in quadrant A1,897,326359,569
Events in quadrant B1,829,817367,252
Events in quadrant C1,967,413355,779
Events in quadrant D2,232,923348,182

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080172
B077601
C081821
D089811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3464541.558891%
B3464541.558891%
C3464832.396074%
D3464581.674365%

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 4714 3464 4 4 0.08% 0.12%
B 4714 3465 0 0 0.00% 0.00%
C 4714 3464 0 0 0.00% 0.00%
D 4714 3464 26 26 0.55% 0.75%

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 12 96 49892 520.03 471 462 95.1
A 9 143 19124 196.33 471 462 95.1
A 13 252 10638 107.06 471 462 95.1
B 12 111 10618 113.59 467 457 89.5
B 11 111 9307 98.93 467 457 89.5
B 14 111 8462 89.49 467 457 89.5
C 3 233 114569 1071.89 456 460 106.5
C 14 238 71496 667.28 456 460 106.5
C 9 54 4081 34.01 456 460 106.5
D 5 222 243099 2177.97 459 447 111.4
D 1 52 240536 2154.97 459 447 111.4
D 2 234 13487 117.04 459 447 111.4

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