ASTROSAT CZTI

Data Quality Report

Orbit 06559

Creation date: 2024-06-27T15:08:49.007163
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/AS1G05_246T04_9000000882_06559cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06559cztM0_level2_quad_clean.evt
Size (bytes)434,770,56075,574,080
Size414.6 MB 72.1 MB
Events in quadrant A2,752,421469,552
Events in quadrant B2,862,908480,162
Events in quadrant C2,643,506473,143
Events in quadrant D4,494,736440,772

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124362
B0127461
C0123841
D0176031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6080470.773026%
B6080590.970395%
C6080140.230263%
D60802303.782895%

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 6930 6081 0 0 0.00% 0.00%
B 6930 6081 14 14 0.20% 0.23%
C 6930 6081 0 0 0.00% 0.00%
D 6930 6081 176 176 2.54% 2.89%

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 68556 472.07 696 680 143.8
A 0 226 6596 41.15 696 680 143.8
A 12 194 6362 39.52 696 680 143.8
B 4 48 37277 269.2 699 682 135.9
B 4 172 34946 252.05 699 682 135.9
B 4 81 30984 222.91 699 682 135.9
C 13 61 5396 30.16 674 676 156.5
C 12 4 4634 25.29 674 676 156.5
C 9 54 3732 19.53 674 676 156.5
D 12 221 1135238 6912.28 665 644 164.1
D 2 33 718226 4371.72 665 644 164.1
D 10 172 39663 237.72 665 644 164.1

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