ASTROSAT CZTI

Data Quality Report

Orbit 44625

Creation date: 2024-06-27T23:04:40.654417
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_072T01_9000006008_44625cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44625cztM0_level2_quad_clean.evt
Size (bytes)366,428,16086,973,120
Size349.5 MB 82.9 MB
Events in quadrant A3,836,141583,380
Events in quadrant B2,519,728602,539
Events in quadrant C2,597,122567,190
Events in quadrant D4,179,703492,732

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163670
B0115080
C0118280
D0162230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55381372.473817%
B5538921.661250%
C5539741.335981%
D55394738.539448%

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 5538 5538 7 7 0.13% 0.13%
B 5538 5538 3 3 0.05% 0.05%
C 5539 5539 19 19 0.34% 0.34%
D 5539 5539 392 392 7.08% 7.08%

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 1393429 11000.29 603 591 126.6
A 13 248 86520 678.65 603 591 126.6
A 8 4 7606 55.4 603 591 126.6
B 0 183 54856 450.05 603 583 120.6
B 0 189 20236 162.97 603 583 120.6
B 0 190 19876 159.98 603 583 120.6
C 12 2 105471 760.83 588 591 137.8
C 14 254 60488 434.51 588 591 137.8
C 15 158 41017 293.26 588 591 137.8
D 13 249 526553 3621.46 571 550 145.2
D 1 52 435738 2996.22 571 550 145.2
D 2 249 361300 2483.72 571 550 145.2

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