The baseline mission configuration will evolve with time; this page records the baseline at any epoch.

__**Latest Update: V4.0/4.1 - Aug. 1, 2018**__

The sheet with {{::banddefinitions_req_cbe_combined.xlsx|band definitions and noise (4.0 and 4.1)}} has both Required values (4.1) and Current Best Estimates (4.0). 

**Provenance**

January 2018 - Based on the V3 focal plane considered by the first TeamX review, simplified to uniformly-sized single-pixel hexagonal wafers for initial simulation-based studies.

July 2018 - Table with number of detectors was updated. Focal plane figure was not updated, so is even more wrong then it initially was.

**Instrument - Detectors (this has the requirements, v4.1; for current best estimate check v4.0 in the excel sheet above) **

^ Band  ^ Frequency  ^ Bandwidth  ^ Beam FWHM  ^  NET      ^ f_knee  ^  Exponent ^
^       ^  (GHz)     ^  (GHz)     ^  (arcmin)  ^ (uK_CMB)  ^ (mHz)   ^  α        ^
|  1    |  21.0      |  5.2       |  38.4      |  143     |  10     |  1        |
|  2    |  25.0      |  6.3       |  32.9      |  131     |  10     |  1        |
|  3    |  30.0      |  7.5       |  28.3      |  80.7    |  10     |  1        |
|  4    |  36.0      |  9.0       |  23.6      |  73.9    |  10     |  1        |
|  5    |  43.2      |  10.8      |  22.2      |  58.7     |  10     |  1        |
|  6    |  51.8      |  13.0      |  18.4      |  54.0     |  10     |  1        |
|  7    |  62.2      |  15.6      |  12.8      |  86.3     |  10     |  1        |
|  8    |  74.6      |  18.7      |  10.7      |  80.9     |  10     |  1        |
|  9    |  89.6      |  22.4      |  9.5       |  50.3     |  10     |  1        |
|  10   |  107.5     |  26.9      |  7.9       |  48.0     |  10     |  1        |
|  11   |  129.0     |  32.3      |  7.4       |  39.1     |  10     |  1        |
|  12   |  154.8     |  38.7      |  6.2       |  38.5     |  10     |  1        |
|  13   |  185.8     |  46.5      |  4.3       |  79.8     |  10     |  1        |
|  14   |  222.9     |  55.7      |  3.6       |  91.2     |  10     |  1        |
|  15   |  267.5     |  66.9      |  3.2       |  64.0     |  10     |  1        |
|  16   |  321.0     |  80.3      |  2.6       |  85.4     |  10     |  1        |
|  17   |  385.2     |  96.3      |  2.5       |  93.9     |  10     |  1        |
|  18   |  462.2     |  115.6     |  2.1       |  183    |  10     |  1        |
|  19   |  554.7     |  138.7     |  1.5       |  647    |  10     |  1        |
|  20   |  665.6     |  166.4     |  1.3       |  2388   |  10     |  1        |
|  21   |  798.7     |  199.7     |  1.1       |  13388  |  10     |  1        |

Note: PSD(f) = NET^2 * (f^α + f_knee^α) / (f^α + f_min^α)

**Instrument - Focal Plane**

{{:pico_v3.0.png?500|}}

^ Wafer Size ^ Focal Plane Size ^  Plate Scale   ^ Focal Plane FOV ^
^   (cm)     ^   (cm)           ^  (degrees/cm)  ^   (degrees)     ^
|   5        |    45            |    0.27        |     12.15       |


^ Wafer  ^ Count  ^ Pixels/Wafer ^ Pixels ^ Bands       ^ Detectors/Band ^ Detectors/pixel  ^ Sampling Rate (Hz)  ^
| A      |  10    |  6           | 60     | 1, 3, 5    |  120            |   360            |  45                |
| B      |  14    |  7           | 98     | 2, 4, 6    |  196            |   588            |  55                 |
| C      |  18    |  20          | 360    | 7, 9, 11   |  720            |  2160            |  136                |
| D      |  12    |  43          | 516    | 8, 10, 12  |  1032           |  3096            |  163                |
| E      |  3     |  160         | 480    | 13, 15, 17 |  960            |  2880            |  403                |
| F      |  3     |  150         | 450    | 14, 16, 18 |  900            |  2700            |  480                |
| GHI    |  1     |  200         | 200    | 19, 20, 21 |  400            |  1200            |  917                |

**Observation**

^  Parameter                  ^  Value      ^
|  Precession Angle (α)        |  26 degrees  |
|  Precession Period (T_prec)  |  10 hours    |
|  Spin Angle (β)              |  69 degrees  |
|  Spin Period (T_spin)        |  1 minute    |
|  Duration                    |  5 years     |
|  CryoCycle Period            |  1 day       |
|  CryoCycle Duration          |  0 minutes   |
|  HWP Period (T_hwp)          |  N/A         | 

**References**

* {{::banddefinitions_v3.0.xlsx| Band Definitions}}

* {{::optics_and_focalplane_update_20180117.pdf|Focal Plane}}