ASTROSAT CZTI

Data Quality Report

Orbit 39085

Creation date: 2024-06-27T22:00:13.948902
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/AS1T05_067T01_9000005432_39085cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39085cztM0_level2_quad_clean.evt
Size (bytes)317,828,16098,389,440
Size303.1 MB 93.8 MB
Events in quadrant A2,981,227681,188
Events in quadrant B2,573,285694,097
Events in quadrant C2,709,738640,070
Events in quadrant D3,098,529602,252

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120453
B0108362
C0110682
D0127742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5163170.329266%
B516380.154949%
C5163110.213054%
D5163190.368003%

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 7286 5164 10 10 0.14% 0.19%
B 7286 5164 1 1 0.01% 0.02%
C 7286 5164 5 5 0.07% 0.10%
D 7286 5164 11 11 0.15% 0.21%

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 409230 3275.4 624 615 124.8
A 12 16 58938 467.51 624 615 124.8
A 13 248 46780 370.05 624 615 124.8
B 5 184 116083 982.33 618 603 117.6
B 12 111 14614 119.18 618 603 117.6
B 11 111 13244 107.53 618 603 117.6
C 15 214 217804 1592.39 591 595 136.4
C 15 208 179887 1314.42 591 595 136.4
C 0 10 6920 46.37 591 595 136.4
D 12 235 528460 3633.8 596 580 145.3
D 2 249 96961 663.46 596 580 145.3
D 12 233 75574 516.24 596 580 145.3

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