ASTROSAT CZTI

Data Quality Report

Orbit 38332

Creation date: 2024-06-27T21:51:22.252299
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/AS1A10_094T24_9000005374_38332cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38332cztM0_level2_quad_clean.evt
Size (bytes)460,359,36088,081,920
Size439.0 MB 84.0 MB
Events in quadrant A2,806,056632,932
Events in quadrant B2,690,740651,296
Events in quadrant C2,444,499612,001
Events in quadrant D8,719,617427,515

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113643
B0110292
C0101552
D0292872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4896290.592320%
B4896420.857843%
C4896140.285948%
D4896143629.330065%

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 7049 4897 12 12 0.17% 0.25%
B 7049 4897 20 20 0.28% 0.41%
C 7049 4897 9 9 0.13% 0.18%
D 7049 4897 2075 2075 29.44% 42.37%

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 409278 3580.47 573 563 114.2
A 13 248 72928 633.94 573 563 114.2
A 12 189 53449 463.3 573 563 114.2
B 0 183 132720 1232.31 576 563 107.2
B 0 229 98930 917.23 576 563 107.2
B 0 186 67951 628.36 576 563 107.2
C 15 214 208444 1637.09 555 560 127.0
C 0 10 42336 328.99 555 560 127.0
C 14 254 11348 84.96 555 560 127.0
D 10 203 5310227 42076.3 516 501 126.2
D 2 16 783199 6202.4 516 501 126.2
D 2 250 239556 1894.36 516 501 126.2

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