ASTROSAT CZTI

Data Quality Report

Orbit 45458

Creation date: 2024-06-27T23:12:30.898664
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/AS1A13_038T03_9000006088_45458cztM0_level2.fits modeM0/AS1A13_038T03_9000006088_45458cztM0_level2_quad_clean.evt
Size (bytes)461,445,120109,457,280
Size440.1 MB 104.4 MB
Events in quadrant A5,723,557727,346
Events in quadrant B3,956,721749,182
Events in quadrant C2,939,953735,580
Events in quadrant D3,967,092658,143

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216142
B0160522
C0131172
D0162142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63612614.103128%
B63602744.308176%
C6360350.550314%
D63601662.610063%

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 7531 6362 31 31 0.41% 0.49%
B 7530 6361 90 90 1.20% 1.41%
C 7530 6361 0 0 0.00% 0.00%
D 7530 6361 89 89 1.18% 1.40%

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 10 83 2730488 17835.89 747 730 153.0
A 2 79 33000 210.85 747 730 153.0
A 13 248 32966 210.63 747 730 153.0
B 15 201 729597 4960.84 747 727 146.9
B 12 48 96073 648.95 747 727 146.9
B 3 112 56797 381.62 747 727 146.9
C 3 233 21327 118.84 742 746 173.2
C 1 3 10441 55.98 742 746 173.2
C 9 237 5861 29.53 742 746 173.2
D 1 52 365572 1993.89 729 707 183.0
D 11 241 287768 1568.71 729 707 183.0
D 13 249 193171 1051.76 729 707 183.0

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