ASTROSAT CZTI

Data Quality Report

Orbit 33407

Creation date: 2024-06-27T20:48:29.372635
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/AS1C07_001T03_9000004790_33407cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33407cztM0_level2_quad_clean.evt
Size (bytes)437,506,560104,175,360
Size417.2 MB 99.3 MB
Events in quadrant A2,447,780721,092
Events in quadrant B3,702,862702,396
Events in quadrant C2,806,968703,047
Events in quadrant D3,934,247659,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106363
B0144362
C0114232
D0153072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527840.075786%
B52783927.427056%
C5278591.117848%
D5278861.629405%

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 7222 5279 0 0 0.00% 0.00%
B 7222 5279 328 328 4.54% 6.21%
C 7222 5279 45 45 0.62% 0.85%
D 7222 5279 71 71 0.98% 1.34%

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 13 254 9352 69.85 632 622 125.0
A 3 137 5813 41.53 632 622 125.0
A 0 226 5433 38.49 632 622 125.0
B 5 172 1157576 10159.07 608 593 113.9
B 5 255 47575 412.53 608 593 113.9
B 0 245 28939 248.9 608 593 113.9
C 15 214 230967 1661.13 604 610 138.7
C 0 10 135549 973.06 604 610 138.7
C 14 254 68190 487.33 604 610 138.7
D 8 195 885957 6097.68 597 581 145.2
D 14 173 214899 1476.03 597 581 145.2
D 13 249 147969 1015.08 597 581 145.2

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